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Patent applications and USPTO patent grants for Japan, as represented by Director General of Agency of Industrial.The latest application filed is for "poly(benzoic acid), method for the preparation thereof and method for the preparation of poly(p-phenylene) therefrom".
Patent | Date |
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Poly(benzoic acid), method for the preparation thereof and method for the preparation of poly(p-phenylene) therefrom Grant 5,408,011 - Tanaka , et al. April 18, 1 | 1995-04-18 |
Polymeric conjugate of methotrexate compound and pyran copolymer and method for the preparation thereof Grant 5,401,742 - Hirano , et al. March 28, 1 | 1995-03-28 |
Method for the recovery of gold value Grant 5,389,124 - Nakao February 14, 1 | 1995-02-14 |
High modulus polyester from 4,4'-diphenyldicarboxylic acid Grant 4,906,724 - Yamanaka , et al. March 6, 1 | 1990-03-06 |
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