Quantum Computing patent applications on 18th September 2025
Quantum Computing Patent Applications on 18th September 2025
Executive Summary
On 18th September 2025, 21 patent applications related to Quantum Computing were published, representing 0.3% of all patent applications for the day. While representing a smaller percentage, this activity indicates emerging innovation in Quantum Computing.
Market Analysis
Leading Organizations
The top organizations driving Quantum Computing innovation include:
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- FUJITSU LIMITED: 2 applications (9.5% of Quantum Computing patents)
- Dell Products LP: 2 applications (9.5% of Quantum Computing patents)
- BANK OF AMERICA CORPORATION: 2 applications (9.5% of Quantum Computing patents)
- Quantinuum Llc: 1 applications (4.8% of Quantum Computing patents)
- Microsoft Technology Licensing LLC: 1 applications (4.8% of Quantum Computing patents)
These 5 organizations account for 8 applications (38.1% of all Quantum Computing patents), indicating moderate concentration in the field.
Technology Deep Dive
Core Innovation Areas
Patent applications in Quantum Computing encompass several key innovation areas:
- Quantum Computing: Core technology area
- Quantum Processor: Core technology area
- Qubit: Core technology area
- Quantum Algorithm: Core technology area
Technical Classification Analysis
The most active CPC classifications in Quantum Computing include:
- G06N10/20 (Models of quantum computing, e.g. quantum circuits or universal quantum computers): 9 applications (42.9%)
- G06N10/40 (Physical realisations or architectures of quantum processors or components for manipulating qubits, e.g. qubit coupling or qubit control): 8 applications (38.1%)
- G06N10/60 (Quantum algorithms, e.g. based on quantum optimisation, quantum Fourier or Hadamard transforms): 8 applications (38.1%)
- G06N10/70 (Quantum error correction, detection or prevention, e.g. surface codes or magic state distillation): 4 applications (19.0%)
- G06F9/466 (Multiprogramming arrangements): 1 applications (4.8%)
- G06N10/00 (Quantum computing, i.e. information processing based on quantum-mechanical phenomena): 1 applications (4.8%)
- H10N60/10 (Technology classification): 1 applications (4.8%)
- H04L9/16 (the keys or algorithms being changed during operation): 1 applications (4.8%)
- H04L9/0825 ({using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates}): 1 applications (4.8%)
- H10D62/815 (Technology classification): 1 applications (4.8%)
Global Innovation Landscape
Innovation in Quantum Computing spans multiple countries:
- US: 22 inventors (31.9%)
- KR: 8 inventors (11.6%)
- IN: 8 inventors (11.6%)
- IL: 7 inventors (10.1%)
- TW: 6 inventors (8.7%)
- JP: 5 inventors (7.2%)
- BR: 5 inventors (7.2%)
- GB: 3 inventors (4.3%)
- FI: 3 inventors (4.3%)
- CH: 1 inventors (1.4%)
The US accounts for 31.9% of inventors in Quantum Computing, reflecting a globally distributed innovation landscape.
Industry Collaborations
Notable collaborations in Quantum Computing include:
- FUJITSU LIMITED × OSAKA UNIVERSITY: 1 joint applications
These collaborations represent 1 joint applications, indicating emerging collaboration trends in Quantum Computing.
Leading Inventors
Key inventors driving Quantum Computing innovation:
- Ítalo Gomes Santana of Rio de Janeiro BR: 2 applications
- Miguel Paredes Quiñones of Campinas BR: 2 applications
- Maharaj Mukherjee of Poughkeepsie NY US: 2 applications
- James A. Walker of Boulder CO US: 1 applications
- Dominic Lucchetti of Broomfield CO US: 1 applications
- Bryce J. Bjork of Boulder CO US: 1 applications
- Caroline Figgatt of Broomfield CO US: 1 applications
- Patricia Lee of Broomfield CO US: 1 applications
- Gerald Chambers of Broomfield CO US: 1 applications
- Benjamin Arkin of Broomfield CO US: 1 applications
Recent Patent Applications
Representative Quantum Computing patent applications from 18th September 2025:
20250291625. QUANTUM COMPUTER PHASE TRACKING AND CORRECTION
Applicant: Quantinuum Llc
Abstract: A controller of a quantum system identifies a phase update trigger for a quantum object of the quantum system and an interaction time. Responsive to identifying the phase update trigger, the controller determines, for between a first time and the interaction time, (a) a location/transport effect on a phase of the quantum object based on locations thereof and transport operations performed thereon, and (b) a quantum operation effect on the phase of the quantum object based on any quantum operatio...
20250292128. SURFACE CODE IMPLEMENTATION OF LOGICAL HADAMARD GATE
Applicant: Microsoft Technology Licensing LLC
Abstract: A method is presented for implementing a logical Hadamard gate with a fault distance of d. A patch of surface code is rotated such that boundaries where logical X-string operators terminate are swapped with boundaries where logical Z-string operators terminate. Rotating the patch of surface code comprises at least measuring generators of a first expansion stage with a first expansion circuit, and measuring generators of a second expansion stage with a first sub-circuit and a second sub-circuit o...
20250292129. INFORMATION PROCESSING APPARATUS AND QUANTUM CIRCUIT GENERATION METHOD
Applicant: FUJITSU LIMITED
Abstract: A storage unit stores operator information, which indicates a plurality of projection operators, each of which is indicated by a combination of a plurality of Pauli operators, and layout information, which indicates connection relationships between a plurality of qubits included in a quantum device. A processing unit generates a matrix including a plurality of rows corresponding to the plurality of qubits and a plurality of columns corresponding to the plurality of projection operators. The proc...
20250292130. APPARATUS AND METHOD FOR SIMULATING LOGICAL QUBIT
Applicant: Electronics and Telecommunications Research Institute
Abstract: Disclosed herein is an apparatus and method for simulating a logical qubit. The apparatus receives a logical qubit operation for simulating a logical qubit, performs a logical qubit operation for calculating a logical value, a probability amplitude, and the number of state vectors using a logical qubit behavior model, and stores the result of the logical qubit operation for the logical value, the probability amplitude, and the number of state vectors.
20250292131. QUANTUM DEVICE INITIALISATION
Applicant: Riverlane Ltd
Abstract: A quantum computing system and associated method of preparing a plurality of quantum devices are disclosed. A compiling system of the quantum computing system is configured to receive a quantum state specification comprising a plurality of state variables defining a quantum state, determine a compressed representation of the quantum state, and send the compressed representation to a control system of the quantum computing system. The control system is configured to receive the compressed represe...
Market Implications
Innovation Intensity
With 21 applications in a single day, Quantum Computing demonstrates moderate innovation intensity, suggesting growing market interest and investment.
Competitive Landscape
Innovation in Quantum Computing involves 19 organizations, suggesting a concentrated field with specialized players.
Technology Outlook
Emerging themes in Quantum Computing patents include: quantum, computing, logical, circuit, that, suggesting future development in these areas.
The current patent activity level suggests Quantum Computing is in a early development phase with emerging applications and technologies.
Related Technology Areas
Innovation in Quantum Computing often intersects with other emerging technologies:
- Semiconductors: 575 applications
- Medical Devices: 433 applications
- 5G Technology: 246 applications
- Cybersecurity: 236 applications
- Internet of Things: 182 applications
- Generative AI: 176 applications
- Renewable Energy: 175 applications
- Biotechnology: 169 applications