SEARCH RESULTS for assignor:"WALTERS, ROBERT W."

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(X0) 15860737: ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

(A1) 20180130963: ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

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(X0) 15556672: Photochromic Thienochromene Compounds

(A1) 20180051037: Photochromic Thienochromene Compounds

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(X0) 15659884: ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

(A1) 20170331055: ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

(B2) 9: ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES