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=== Top CPC Codes ===
=== Top CPC Codes ===
* [[:Category:CPC_H04L9/0852|H04L9/0852]] ({Quantum cryptography  (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared)
* [[:Category:CPC_H04L9/0852|H04L9/0852]] (No explanation available)
** Count: 10 patents
** Count: 11 patents
** Example: [[20250038968. UNIVERSAL QUANTUM SECURE DEVICE, METHOD OF SENDING DATA AND METHOD OF RECEIVING DATA (MATRICTIME DIGITAL TECHNOLOGY CO., LTD)]]
** Example: [[20250038968. UNIVERSAL QUANTUM SECURE DEVICE, METHOD OF SENDING DATA AND METHOD OF RECEIVING DATA (MATRICTIME DIGITAL TECHNOLOGY CO., LTD)]]
* [[:Category:CPC_H04L9/0869|H04L9/0869]] ({involving random numbers or seeds})
* [[:Category:CPC_H04L9/0869|H04L9/0869]] (No explanation available)
** Count: 3 patents
** Count: 3 patents
** Example: [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]]
** Example: [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]]
* [[:Category:CPC_H04L63/0428|H04L63/0428]] ({wherein the data content is protected, e.g. by encrypting or encapsulating the payload})
* [[:Category:CPC_H04L9/0819|H04L9/0819]] (No explanation available)
** Count: 3 patents
** Example: [[20250007702. QUANTUM KEY DISTRIBUTION SYSTEM TO OVERCOME INTERCEPT-RESEND AND DETECTOR-CONTROL QUANTUM HACKING (University of Central Florida Research Foundation, Inc.)]]
* [[:Category:CPC_H04B10/70|H04B10/70]] (No explanation available)
** Count: 3 patents
** Example: [[20250080336. QUANTUM COMMUNICATION SYSTEM THAT SWITCHES BETWEEN QUANTUM KEY DISTRIBUTION (QKD) PROTOCOLS AND ASSOCIATED METHODS (Eagle Technology, LLC)]]
* [[:Category:CPC_H04L63/0428|H04L63/0428]] (No explanation available)
** Count: 2 patents
** Count: 2 patents
** Example: [[20250038968. UNIVERSAL QUANTUM SECURE DEVICE, METHOD OF SENDING DATA AND METHOD OF RECEIVING DATA (MATRICTIME DIGITAL TECHNOLOGY CO., LTD)]]
** Example: [[20250038968. UNIVERSAL QUANTUM SECURE DEVICE, METHOD OF SENDING DATA AND METHOD OF RECEIVING DATA (MATRICTIME DIGITAL TECHNOLOGY CO., LTD)]]
* [[:Category:CPC_H04L63/0435|H04L63/0435]] ({for providing a confidential data exchange among entities communicating through data packet networks})
* [[:Category:CPC_H04L63/0435|H04L63/0435]] (No explanation available)
** Count: 2 patents
** Count: 2 patents
** Example: [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]]
** Example: [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]]
* [[:Category:CPC_H04L9/0819|H04L9/0819]] ({Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)  (network architectures or network communication protocols for key distribution in a packet data network)
* [[:Category:CPC_H04L9/0858|H04L9/0858]] (No explanation available)
** Count: 2 patents
** Count: 2 patents
** Example: [[20250007702. QUANTUM KEY DISTRIBUTION SYSTEM TO OVERCOME INTERCEPT-RESEND AND DETECTOR-CONTROL QUANTUM HACKING (University of Central Florida Research Foundation, Inc.)]]
** Example: [[20250007702. QUANTUM KEY DISTRIBUTION SYSTEM TO OVERCOME INTERCEPT-RESEND AND DETECTOR-CONTROL QUANTUM HACKING (University of Central Florida Research Foundation, Inc.)]]
* [[:Category:CPC_H04L63/166|H04L63/166]] ({Implementing security features at a particular protocol layer})
* [[:Category:CPC_H04L63/166|H04L63/166]] (No explanation available)
** Count: 2 patents
** Count: 2 patents
** Example: [[20250023916. COMMUNICATION METHOD FOR QUANTUM SECURITY AND COMMUNICATION DEVICE SUPPORTING THE SAME (Samsung SDS Co., Ltd.)]]
** Example: [[20250023916. COMMUNICATION METHOD FOR QUANTUM SECURITY AND COMMUNICATION DEVICE SUPPORTING THE SAME (Samsung SDS Co., Ltd.)]]
* [[:Category:CPC_H04B10/70|H04B10/70]] (Photonic quantum communication)
* [[:Category:CPC_H04L9/14|H04L9/14]] (No explanation available)
** Count: 2 patents
** Count: 2 patents
** Example: [[20250080336. QUANTUM COMMUNICATION SYSTEM THAT SWITCHES BETWEEN QUANTUM KEY DISTRIBUTION (QKD) PROTOCOLS AND ASSOCIATED METHODS (Eagle Technology, LLC)]]
** Example: [[20250097031. INFORMATION PROCESSING DEVICE, QKD NETWORK SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT (KABUSHIKI KAISHA TOSHIBA)]]
* [[:Category:CPC_H04L9/0825|H04L9/0825]] ({using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates})
* [[:Category:CPC_H04L9/0825|H04L9/0825]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250038969. POST QUANTUM KEY ENCAPSULATION MECHANISM BASED SUCI ENCRYPTION (Nokia Technologies Oy)]]
** Example: [[20250038969. POST QUANTUM KEY ENCAPSULATION MECHANISM BASED SUCI ENCRYPTION (Nokia Technologies Oy)]]
* [[:Category:CPC_H04L9/0861|H04L9/0861]] ({Generation of secret information including derivation or calculation of cryptographic keys or passwords})
** Count: 1 patents
** Example: [[20250038970. QUANTUM KEY DISTRIBUTION (QKD) METHOD, QKD END-NODE AND QKD NETWORK (Airbus SAS)]]
* [[:Category:CPC_H04L9/083|H04L9/083]] ({involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]})
** Count: 1 patents
** Example: [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]]


== Top Companies in Quantum Cryptography 2025 ==
== Top Companies in Quantum Cryptography 2025 ==
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* Number of Quantum Cryptography patents: 2
* Number of Quantum Cryptography patents: 2
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L9/0852|H04L9/0852]] ({Quantum cryptography  (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared): 1 patents
** [[:Category:CPC_H04L9/0852|H04L9/0852]] (No explanation available): 1 patents
** [[:Category:CPC_H04L9/0825|H04L9/0825]] ({using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates}): 1 patents
** [[:Category:CPC_H04L9/0825|H04L9/0825]] (No explanation available): 1 patents
** [[:Category:CPC_H04W12/72|H04W12/72]] (Subscriber identity): 1 patents
** [[:Category:CPC_H04W12/72|H04W12/72]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250038969. POST QUANTUM KEY ENCAPSULATION MECHANISM BASED SUCI ENCRYPTION (Nokia Technologies Oy)]] (20250130)
** [[20250038969. POST QUANTUM KEY ENCAPSULATION MECHANISM BASED SUCI ENCRYPTION (Nokia Technologies Oy)]] (20250130)
** [[20250048113. SUCI ENCRYPTION (Nokia Technologies Oy)]] (20250206)
** [[20250048113. SUCI ENCRYPTION (Nokia Technologies Oy)]] (20250206)
=== [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]] ===
* Number of Quantum Cryptography patents: 2
* Top CPC codes:
** [[:Category:CPC_H04L9/14|H04L9/14]] (No explanation available): 2 patents
** [[:Category:CPC_H04L9/0852|H04L9/0852]] (No explanation available): 1 patents
** [[:Category:CPC_H04L9/0819|H04L9/0819]] (No explanation available): 1 patents
* Recent patents:
** [[20250097031. INFORMATION PROCESSING DEVICE, QKD NETWORK SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT (KABUSHIKI KAISHA TOSHIBA)]] (20250320)
** [[20250088354. KEY MANAGEMENT SERVER DEVICE, QKD SYSTEM, AND KEY MANAGEMENT METHOD (KABUSHIKI KAISHA TOSHIBA)]] (20250313)
=== [[:Category:MATRICTIME DIGITAL TECHNOLOGY CO., LTD|MATRICTIME DIGITAL TECHNOLOGY CO., LTD]] ===
=== [[:Category:MATRICTIME DIGITAL TECHNOLOGY CO., LTD|MATRICTIME DIGITAL TECHNOLOGY CO., LTD]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L9/0852|H04L9/0852]] ({Quantum cryptography  (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared): 1 patents
** [[:Category:CPC_H04L9/0852|H04L9/0852]] (No explanation available): 1 patents
** [[:Category:CPC_H04L63/0428|H04L63/0428]] ({wherein the data content is protected, e.g. by encrypting or encapsulating the payload}): 1 patents
** [[:Category:CPC_H04L63/0428|H04L63/0428]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250038968. UNIVERSAL QUANTUM SECURE DEVICE, METHOD OF SENDING DATA AND METHOD OF RECEIVING DATA (MATRICTIME DIGITAL TECHNOLOGY CO., LTD)]] (20250130)
** [[20250038968. UNIVERSAL QUANTUM SECURE DEVICE, METHOD OF SENDING DATA AND METHOD OF RECEIVING DATA (MATRICTIME DIGITAL TECHNOLOGY CO., LTD)]] (20250130)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L9/0852|H04L9/0852]] ({Quantum cryptography  (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared): 1 patents
** [[:Category:CPC_H04L9/0852|H04L9/0852]] (No explanation available): 1 patents
** [[:Category:CPC_H04L9/0861|H04L9/0861]] ({Generation of secret information including derivation or calculation of cryptographic keys or passwords}): 1 patents
** [[:Category:CPC_H04L9/0861|H04L9/0861]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250038970. QUANTUM KEY DISTRIBUTION (QKD) METHOD, QKD END-NODE AND QKD NETWORK (Airbus SAS)]] (20250130)
** [[20250038970. QUANTUM KEY DISTRIBUTION (QKD) METHOD, QKD END-NODE AND QKD NETWORK (Airbus SAS)]] (20250130)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L63/0435|H04L63/0435]] ({for providing a confidential data exchange among entities communicating through data packet networks}): 1 patents
** [[:Category:CPC_H04L63/0435|H04L63/0435]] (No explanation available): 1 patents
** [[:Category:CPC_H04L9/083|H04L9/083]] ({involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]}): 1 patents
** [[:Category:CPC_H04L9/083|H04L9/083]] (No explanation available): 1 patents
** [[:Category:CPC_H04L9/0869|H04L9/0869]] ({involving random numbers or seeds}): 1 patents
** [[:Category:CPC_H04L9/0869|H04L9/0869]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]] (20250130)
** [[20250039158. Encrypting E-mail and Other Digital Data (XQ Message Inc.)]] (20250130)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L9/0852|H04L9/0852]] ({Quantum cryptography  (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared): 1 patents
** [[:Category:CPC_H04L9/0852|H04L9/0852]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250007698. QUANTUM KEY DISTRIBUTION (Quantum Optics Jena GmbH)]] (20250102)
** [[20250007698. QUANTUM KEY DISTRIBUTION (Quantum Optics Jena GmbH)]] (20250102)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L9/0858|H04L9/0858]] ({Details about key distillation or coding, e.g. reconciliation, error correction, privacy amplification, polarisation coding or phase coding}): 1 patents
** [[:Category:CPC_H04L9/0858|H04L9/0858]] (No explanation available): 1 patents
** [[:Category:CPC_H04L9/0819|H04L9/0819]] ({Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)  (network architectures or network communication protocols for key distribution in a packet data network): 1 patents
** [[:Category:CPC_H04L9/0819|H04L9/0819]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250007702. QUANTUM KEY DISTRIBUTION SYSTEM TO OVERCOME INTERCEPT-RESEND AND DETECTOR-CONTROL QUANTUM HACKING (University of Central Florida Research Foundation, Inc.)]] (20250102)
** [[20250007702. QUANTUM KEY DISTRIBUTION SYSTEM TO OVERCOME INTERCEPT-RESEND AND DETECTOR-CONTROL QUANTUM HACKING (University of Central Florida Research Foundation, Inc.)]] (20250102)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L9/0869|H04L9/0869]] ({involving random numbers or seeds}): 1 patents
** [[:Category:CPC_H04L9/0869|H04L9/0869]] (No explanation available): 1 patents
** [[:Category:CPC_G06F7/588|G06F7/588]] (Random or pseudo-random number generators): 1 patents
** [[:Category:CPC_G06F7/588|G06F7/588]] (No explanation available): 1 patents
** [[:Category:CPC_H04L2209/08|H04L2209/08]] (TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION  (arrangements common to telegraphic and telephonic communication): 1 patents
** [[:Category:CPC_H04L2209/08|H04L2209/08]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250007704. Redundant Quantum Random Number Generator in a Quantum Communication System (Quantum Technologies Laboratories, Inc.)]] (20250102)
** [[20250007704. Redundant Quantum Random Number Generator in a Quantum Communication System (Quantum Technologies Laboratories, Inc.)]] (20250102)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H03K5/133|H03K5/133]] (Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals): 1 patents
** [[:Category:CPC_H03K5/133|H03K5/133]] (No explanation available): 1 patents
** [[:Category:CPC_H03K5/135|H03K5/135]] (by the use of time reference signals, e.g. clock signals): 1 patents
** [[:Category:CPC_H03K5/135|H03K5/135]] (No explanation available): 1 patents
** [[:Category:CPC_H03M7/165|H03M7/165]] (CODING; DECODING; CODE CONVERSION IN GENERAL  (using fluidic means): 1 patents
** [[:Category:CPC_H03M7/165|H03M7/165]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250023556. METHOD FOR MEASURING STATES OF TIME-BIN QUBITS IN A QUANTUM CRYPTOGRAPHY KEY DISTRIBUTION SYSTEM USING A TIME-TO-DIGITAL CONVERTER AND A SYSTEM FOR THE SAME (SDT Inc.)]] (20250116)
** [[20250023556. METHOD FOR MEASURING STATES OF TIME-BIN QUBITS IN A QUANTUM CRYPTOGRAPHY KEY DISTRIBUTION SYSTEM USING A TIME-TO-DIGITAL CONVERTER AND A SYSTEM FOR THE SAME (SDT Inc.)]] (20250116)
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* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
* Top CPC codes:
** [[:Category:CPC_H04L63/166|H04L63/166]] ({Implementing security features at a particular protocol layer}): 1 patents
** [[:Category:CPC_H04L63/166|H04L63/166]] (No explanation available): 1 patents
** [[:Category:CPC_H04L63/0435|H04L63/0435]] ({for providing a confidential data exchange among entities communicating through data packet networks}): 1 patents
** [[:Category:CPC_H04L63/0435|H04L63/0435]] (No explanation available): 1 patents
* Recent patents:
* Recent patents:
** [[20250023916. COMMUNICATION METHOD FOR QUANTUM SECURITY AND COMMUNICATION DEVICE SUPPORTING THE SAME (Samsung SDS Co., Ltd.)]] (20250116)
** [[20250023916. COMMUNICATION METHOD FOR QUANTUM SECURITY AND COMMUNICATION DEVICE SUPPORTING THE SAME (Samsung SDS Co., Ltd.)]] (20250116)
=== [[:Category:Eagle Technology, LLC|Eagle Technology, LLC]] ===
* Number of Quantum Cryptography patents: 1
* Top CPC codes:
** [[:Category:CPC_H04L9/0852|H04L9/0852]] ({Quantum cryptography  (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared): 1 patents
** [[:Category:CPC_H04B10/70|H04B10/70]] (Photonic quantum communication): 1 patents
** [[:Category:CPC_H04L9/12|H04L9/12]] (TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION  (arrangements common to telegraphic and telephonic communication): 1 patents
* Recent patents:
** [[20250080336. QUANTUM COMMUNICATION SYSTEM THAT SWITCHES BETWEEN QUANTUM KEY DISTRIBUTION (QKD) PROTOCOLS AND ASSOCIATED METHODS (Eagle Technology, LLC)]] (20250306)


== New Companies in Quantum Cryptography (Last Month) ==
== New Companies in Quantum Cryptography (Last Month) ==
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[[File:Emerging_Technology_Areas_in_Quantum_Cryptography.png|border|800px]]
[[File:Emerging_Technology_Areas_in_Quantum_Cryptography.png|border|800px]]


* [[:Category:CPC_H04L9/3247|H04L9/3247]] ({involving digital signatures})
* [[:Category:CPC_H04L9/3247|H04L9/3247]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250015981. POST-QUANTUM CRYPTOGRAPHY FOR SECURE BOOT (Google LLC)]]
** Example: [[20250015981. POST-QUANTUM CRYPTOGRAPHY FOR SECURE BOOT (Google LLC)]]
* [[:Category:CPC_H04L9/0643|H04L9/0643]] ({Hash functions, e.g. MD5, SHA, HMAC or f9 MAC})
* [[:Category:CPC_H04L9/0643|H04L9/0643]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250015981. POST-QUANTUM CRYPTOGRAPHY FOR SECURE BOOT (Google LLC)]]
** Example: [[20250015981. POST-QUANTUM CRYPTOGRAPHY FOR SECURE BOOT (Google LLC)]]
* [[:Category:CPC_B64U2101/20|B64U2101/20]] (UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR)
* [[:Category:CPC_B64U2101/20|B64U2101/20]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]]
** Example: [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]]
* [[:Category:CPC_H04L9/0822|H04L9/0822]] ({using key encryption key})
* [[:Category:CPC_H04L9/0822|H04L9/0822]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]]
** Example: [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]]
* [[:Category:CPC_B64C39/024|B64C39/024]] ({of the remote controlled vehicle type, i.e. RPV})
* [[:Category:CPC_B64C39/024|B64C39/024]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]]
** Example: [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]]
* [[:Category:CPC_G02B6/29355|G02B6/29355]] (with wavelength selective means)
* [[:Category:CPC_G02B6/29355|G02B6/29355]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]]
** Example: [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]]
* [[:Category:CPC_H04L9/321|H04L9/321]] ({involving a third party or a trusted authority})
* [[:Category:CPC_H04L9/321|H04L9/321]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250030667. AUTOMATIC SAE ID EXCHANGE FOR QUANTUM KEY DISTRIBUTION (QKD) CRYPTOGRAPHY (Ciena Corporation)]]
** Example: [[20250030667. AUTOMATIC SAE ID EXCHANGE FOR QUANTUM KEY DISTRIBUTION (QKD) CRYPTOGRAPHY (Ciena Corporation)]]
* [[:Category:CPC_H04L9/0838|H04L9/0838]] ({Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these  (network architectures or network communication protocols for key exchange in a packet data network)
* [[:Category:CPC_H04L9/0855|H04L9/0855]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250080338. METHOD FOR QUANTUM-SECURED COMMUNICATION (Universität Hamburg)]]
** Example: [[20250097021. QUANTUM NETWORK DEVICES, SYSTEMS, AND METHODS (THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK)]]
* [[:Category:CPC_H04L9/12|H04L9/12]] (TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION  (arrangements common to telegraphic and telephonic communication)
* [[:Category:CPC_G01B9/02017|G01B9/02017]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250080336. QUANTUM COMMUNICATION SYSTEM THAT SWITCHES BETWEEN QUANTUM KEY DISTRIBUTION (QKD) PROTOCOLS AND ASSOCIATED METHODS (Eagle Technology, LLC)]]
** Example: [[20250097021. QUANTUM NETWORK DEVICES, SYSTEMS, AND METHODS (THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK)]]
* [[:Category:CPC_H03M7/165|H03M7/165]] (CODING; DECODING; CODE CONVERSION IN GENERAL  (using fluidic means)
* [[:Category:CPC_G06N10/40|G06N10/40]] (No explanation available)
** Count: 1 patents
** Count: 1 patents
** Example: [[20250023556. METHOD FOR MEASURING STATES OF TIME-BIN QUBITS IN A QUANTUM CRYPTOGRAPHY KEY DISTRIBUTION SYSTEM USING A TIME-TO-DIGITAL CONVERTER AND A SYSTEM FOR THE SAME (SDT Inc.)]]
** Example: [[20250094129. METHOD AND DEVICE FOR QUANTUM RANDOM NUMBER GENERATION (Université de Genève)]]


== Top Companies in Emerging Quantum Cryptography Technologies 2025==
== Top Companies in Emerging Quantum Cryptography Technologies 2025==
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* [[:Category:Wells Fargo Bank, N.A.|Wells Fargo Bank, N.A.]]: 3 patents
* [[:Category:Wells Fargo Bank, N.A.|Wells Fargo Bank, N.A.]]: 3 patents
* [[:Category:THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK|THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK]]: 2 patents
* [[:Category:Google LLC|Google LLC]]: 2 patents
* [[:Category:Google LLC|Google LLC]]: 2 patents
* [[:Category:SDT Inc.|SDT Inc.]]: 1 patents
* [[:Category:Université de Genève|Université de Genève]]: 1 patents
* [[:Category:Eagle Technology, LLC|Eagle Technology, LLC]]: 1 patents
* [[:Category:Universität Hamburg|Universität Hamburg]]: 1 patents
* [[:Category:Ciena Corporation|Ciena Corporation]]: 1 patents
* [[:Category:Ciena Corporation|Ciena Corporation]]: 1 patents
* [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
* [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
Line 381: Line 381:
* Recent patents:
* Recent patents:
** [[20250080338. METHOD FOR QUANTUM-SECURED COMMUNICATION (Universität Hamburg)]] (20250306)
** [[20250080338. METHOD FOR QUANTUM-SECURED COMMUNICATION (Universität Hamburg)]] (20250306)
=== [[:Category:Yves Cayer|Yves Cayer]] ===
=== [[:Category:Hugo Zbinden|Hugo Zbinden]] ===
* Number of Quantum Cryptography patents: 1
* Top companies:
** [[:Category:Université de Genève|Université de Genève]]: 1 patents
* Recent patents:
** [[20250094129. METHOD AND DEVICE FOR QUANTUM RANDOM NUMBER GENERATION (Université de Genève)]] (20250320)
=== [[:Category:Davide RUSCA|Davide RUSCA]] ===
* Number of Quantum Cryptography patents: 1
* Top companies:
** [[:Category:Université de Genève|Université de Genève]]: 1 patents
* Recent patents:
** [[20250094129. METHOD AND DEVICE FOR QUANTUM RANDOM NUMBER GENERATION (Université de Genève)]] (20250320)
=== [[:Category:Nicolas BRUNNER|Nicolas BRUNNER]] ===
* Number of Quantum Cryptography patents: 1
* Top companies:
** [[:Category:Université de Genève|Université de Genève]]: 1 patents
* Recent patents:
** [[20250094129. METHOD AND DEVICE FOR QUANTUM RANDOM NUMBER GENERATION (Université de Genève)]] (20250320)
=== [[:Category:Eden Figueroa|Eden Figueroa of Setauket NY (US)]] ===
* Number of Quantum Cryptography patents: 1
* Top companies:
** [[:Category:THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK|THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK]]: 1 patents
* Recent patents:
** [[20250097021. QUANTUM NETWORK DEVICES, SYSTEMS, AND METHODS (THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK)]] (20250320)
=== [[:Category:Mehdi Namazi|Mehdi Namazi of Brooklyn NY (US)]] ===
* Number of Quantum Cryptography patents: 1
* Top companies:
** [[:Category:THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK|THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK]]: 1 patents
* Recent patents:
** [[20250097021. QUANTUM NETWORK DEVICES, SYSTEMS, AND METHODS (THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK)]] (20250320)
=== [[:Category:Mael Flament|Mael Flament of Port Jefferson NY (US)]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:Ciena Corporation|Ciena Corporation]]: 1 patents
** [[:Category:THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK|THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250030667. AUTOMATIC SAE ID EXCHANGE FOR QUANTUM KEY DISTRIBUTION (QKD) CRYPTOGRAPHY (Ciena Corporation)]] (20250123)
** [[20250097021. QUANTUM NETWORK DEVICES, SYSTEMS, AND METHODS (THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK)]] (20250320)
=== [[:Category:STEFANIA SCIARA|STEFANIA SCIARA]] ===
=== [[:Category:Sonali Gera|Sonali Gera of Port Jefferson NY (US)]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
** [[:Category:THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK|THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]] (20250213)
** [[20250097021. QUANTUM NETWORK DEVICES, SYSTEMS, AND METHODS (THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK)]] (20250320)
=== [[:Category:NICOLA MARYANN MONTAUT|NICOLA MARYANN MONTAUT]] ===
=== [[:Category:Yoshimichi TANIZAWA|Yoshimichi TANIZAWA]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]] (20250213)
** [[20250097031. INFORMATION PROCESSING DEVICE, QKD NETWORK SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT (KABUSHIKI KAISHA TOSHIBA)]] (20250320)
=== [[:Category:YOANN JESTIN|YOANN JESTIN]] ===
=== [[:Category:Yasuhiro KATSUBE|Yasuhiro KATSUBE]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]] (20250213)
** [[20250097031. INFORMATION PROCESSING DEVICE, QKD NETWORK SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT (KABUSHIKI KAISHA TOSHIBA)]] (20250320)
=== [[:Category:ROBIN HELSTEN|ROBIN HELSTEN]] ===
=== [[:Category:Ririka TAKAHASHI|Ririka TAKAHASHI]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]] (20250213)
** [[20250097031. INFORMATION PROCESSING DEVICE, QKD NETWORK SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT (KABUSHIKI KAISHA TOSHIBA)]] (20250320)
=== [[:Category:ROBERTO MORANDOTTI|ROBERTO MORANDOTTI]] ===
=== [[:Category:Yu YU|Yu YU]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE|INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250052952. ON-CHIP INTERFEROMETRY SYSTEM FOR HIGH SECRET KEY RATE QUANTUM KEY DISTRIBUTION BASED ON ENTANGLED PHOTONIC QUDITS (INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE)]] (20250213)
** [[20250097031. INFORMATION PROCESSING DEVICE, QKD NETWORK SYSTEM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT (KABUSHIKI KAISHA TOSHIBA)]] (20250320)
=== [[:Category:Jeff J. Stapleton|Jeff J. Stapleton of O'Fallon MO (US)]] ===
=== [[:Category:Yves Cayer|Yves Cayer]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:Wells Fargo Bank, N.A.|Wells Fargo Bank, N.A.]]: 1 patents
** [[:Category:Ciena Corporation|Ciena Corporation]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]] (20250109)
** [[20250030667. AUTOMATIC SAE ID EXCHANGE FOR QUANTUM KEY DISTRIBUTION (QKD) CRYPTOGRAPHY (Ciena Corporation)]] (20250123)
=== [[:Category:Peter Bordow|Peter Bordow of Fountain Hills AZ (US)]] ===
=== [[:Category:Masashi ITO|Masashi ITO]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:Wells Fargo Bank, N.A.|Wells Fargo Bank, N.A.]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250015980. SYSTEMS AND METHODS FOR SECURE KEY DISTRIBUTION VIA A DRONE MESH NETWORK (Wells Fargo Bank, N.A.)]] (20250109)
** [[20250088354. KEY MANAGEMENT SERVER DEVICE, QKD SYSTEM, AND KEY MANAGEMENT METHOD (KABUSHIKI KAISHA TOSHIBA)]] (20250313)
=== [[:Category:Kenneth Leon Root|Kenneth Leon Root of Menlo Park CA (US)]] ===
=== [[:Category:Katsuyuki KIMURA|Katsuyuki KIMURA]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:Google LLC|Google LLC]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250015981. POST-QUANTUM CRYPTOGRAPHY FOR SECURE BOOT (Google LLC)]] (20250109)
** [[20250088354. KEY MANAGEMENT SERVER DEVICE, QKD SYSTEM, AND KEY MANAGEMENT METHOD (KABUSHIKI KAISHA TOSHIBA)]] (20250313)
=== [[:Category:Daniel Saul Fess|Daniel Saul Fess of San Francisco CA (US)]] ===
=== [[:Category:Koji KANAZAWA|Koji KANAZAWA]] ===
* Number of Quantum Cryptography patents: 1
* Number of Quantum Cryptography patents: 1
* Top companies:
* Top companies:
** [[:Category:Google LLC|Google LLC]]: 1 patents
** [[:Category:KABUSHIKI KAISHA TOSHIBA|KABUSHIKI KAISHA TOSHIBA]]: 1 patents
* Recent patents:
* Recent patents:
** [[20250015981. POST-QUANTUM CRYPTOGRAPHY FOR SECURE BOOT (Google LLC)]] (20250109)
** [[20250088354. KEY MANAGEMENT SERVER DEVICE, QKD SYSTEM, AND KEY MANAGEMENT METHOD (KABUSHIKI KAISHA TOSHIBA)]] (20250313)


== Top Collaborations in Quantum Cryptography ==
== Top Collaborations in Quantum Cryptography ==
Line 457: Line 487:
* Bangalore: 4 inventors
* Bangalore: 4 inventors
* MONTRÉAL: 4 inventors
* MONTRÉAL: 4 inventors
* Yokohama Kanagawa: 3 inventors
* Genève: 2 inventors
* Port Jefferson: 2 inventors
* BLAGNAC: 1 inventors
* BLAGNAC: 1 inventors
* Walnut Creek: 1 inventors
* Walnut Creek: 1 inventors
Line 469: Line 502:
* New York: 1 inventors
* New York: 1 inventors
* Gwacheon-si: 1 inventors
* Gwacheon-si: 1 inventors
* Suwon-si: 1 inventors
* Richmond: 1 inventors
* Fort Wayne: 1 inventors


[[Category:Quantum Cryptography]]
[[Category:Quantum Cryptography]]
[[Category:Patent Application Trends by Technology in 2025]]
[[Category:Patent Application Trends by Technology in 2025]]

Revision as of 17:05, 26 March 2025

Quantum Cryptography Patent Application Filing Activity

Quantum Cryptography patent applications in 2025

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Top Technology Areas in Quantum Cryptography

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Top CPC Codes

Top Companies in Quantum Cryptography 2025

Nokia Technologies Oy

KABUSHIKI KAISHA TOSHIBA

MATRICTIME DIGITAL TECHNOLOGY CO., LTD

Airbus SAS

XQ Message Inc.

Quantum Optics Jena GmbH

University of Central Florida Research Foundation, Inc.

Quantum Technologies Laboratories, Inc.

SDT Inc.

Samsung SDS Co., Ltd.

New Companies in Quantum Cryptography (Last Month)

File:New Companies in Quantum Cryptography Last Month.png

No new companies detected in the last month.

Emerging Technology Areas in Quantum Cryptography

Top Companies in Emerging Quantum Cryptography Technologies 2025

Top Inventors in Quantum Cryptography

Aritra BANERJEE

Boohea FOO

Dahai DAI

Ge YANG

Chengyang ZHAO

Xiaoman FU

Ranganathan Mavureddi Dhanasekaran

K. Tirumaleswar Reddy

Saurabh Khare

Paulo-Jorge MILHEIRO MENDES

Brian Wane of Walnut Creek CA (US)

Ikechi Echebiri of Riverside CA (US)

Junaid Islam of San Jose CA (US)

René HEILMANN

Salem F. Hegazy

Bahaa E. A. Saleh of Orlando FL (US)

Peter Boutan of North Bay Village FL (US)

Kyle Kroskey of Chesapeake VA (US)

David Johns of Dayton NV (US)

Alain Obadia of New York NY (US)

Ranganathan MAVUREDDI DHANASEKARAN

K TIRUMALESWAR REDDY

Saurabh KHARE

Jiwon Yune

Byungkwon Park

Chang Hoon LEE

Hun Hee Yu

Eun Kyung Kim

Hyo Jin Yoon

Ji Hoon Cho

VICTOR G. BUCKLEW of Richmond VA (US)

James A. Nagel of Fort Wayne IN (US)

Michael R. Lange of Melbourne FL (US)

Mario MARTINELLI

Ralf Riedinger

Hugo Zbinden

Davide RUSCA

Nicolas BRUNNER

Eden Figueroa of Setauket NY (US)

Mehdi Namazi of Brooklyn NY (US)

Mael Flament of Port Jefferson NY (US)

Sonali Gera of Port Jefferson NY (US)

Yoshimichi TANIZAWA

Yasuhiro KATSUBE

Ririka TAKAHASHI

Yu YU

Yves Cayer

Masashi ITO

Katsuyuki KIMURA

Koji KANAZAWA

Top Collaborations in Quantum Cryptography

Top US States for Quantum Cryptography Inventors


Top Cities for Quantum Cryptography Inventors

  • Nanjing: 5 inventors
  • Seoul: 5 inventors
  • Munich: 4 inventors
  • Bangalore: 4 inventors
  • MONTRÉAL: 4 inventors
  • Yokohama Kanagawa: 3 inventors
  • Genève: 2 inventors
  • Port Jefferson: 2 inventors
  • BLAGNAC: 1 inventors
  • Walnut Creek: 1 inventors
  • Riverside: 1 inventors
  • San Jose: 1 inventors
  • Jena: 1 inventors
  • Giza: 1 inventors
  • Orlando: 1 inventors
  • North Bay Village: 1 inventors
  • Chesapeake: 1 inventors
  • Dayton: 1 inventors
  • New York: 1 inventors
  • Gwacheon-si: 1 inventors
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