C08G 73/1042
Copolyimides derived from at least two different tetracarboxylic compounds or two different
Official title: {Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds}
C08G73/1042 (Copolyimides derived from at least two different tetracarboxylic compounds or two different) appears on 998 US grants and 1,307 published applications in this corpus.
Search patents in C08G- Granted patents
- 998
- Published applications
- 1,307
- Assignees
- 404
- Inventors
- 2,587
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 10 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 21 | 0 |
| 1990 | 26 | 0 |
| 1991 | 19 | 0 |
| 1992 | 17 | 0 |
| 1993 | 12 | 0 |
| 1994 | 11 | 0 |
| 1995 | 14 | 0 |
| 1996 | 7 | 0 |
| 1997 | 15 | 0 |
| 1998 | 18 | 0 |
| 1999 | 21 | 0 |
| 2000 | 18 | 0 |
| 2001 | 14 | 2 |
| 2002 | 16 | 12 |
| 2003 | 10 | 6 |
| 2004 | 4 | 10 |
| 2005 | 6 | 6 |
| 2006 | 5 | 14 |
| 2007 | 4 | 18 |
| 2008 | 7 | 11 |
| 2009 | 7 | 42 |
| 2010 | 9 | 48 |
| 2011 | 22 | 44 |
| 2012 | 21 | 46 |
| 2013 | 30 | 50 |
| 2014 | 38 | 38 |
| 2015 | 28 | 76 |
| 2016 | 39 | 67 |
| 2017 | 40 | 58 |
| 2018 | 42 | 75 |
| 2019 | 42 | 60 |
| 2020 | 53 | 84 |
| 2021 | 50 | 106 |
| 2022 | 52 | 107 |
| 2023 | 50 | 87 |
| 2024 | 62 | 106 |
| 2025 | 57 | 77 |
| 2026 | 30 | 57 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyimide film, high-frequency circuit substrate, and flexible electronic device substrate1 Sep 2026US 12,723,132 B2Ube Corporation
- UV-curable resin compositions suitable for redistribution layers25 Aug 2026US 12,717,232 B2Designer Molecules, Inc.
- Polyimide precursor prepared by using polycyclic monomer including trifluoromethyl group and flexible polyimide obtained by using the same18 Aug 2026US 12,709,662 B2Korea Advanced Institute of Science and Technology
- Composition containing sizing agent for inorganic fibers and method for producing inorganic fibers18 Aug 2026US 12,709,838 B2Takemoto Oil & Fat Co., Ltd.
- Polyimide binder precursor composition, and power storage device using same14 Jul 2026US 12,683,167 B2Ube Corporation
- Polyimides and processes of making and using same8 Oct 2026US 2026/0308324 A1Government of the United States as Represented by the Secretary of the Air Force
- Polyimides: compositions, methods of making, and parts made therefrom1 Oct 2026US 2026/0297260 A1Dupont Specialty Products USA, LLC
- Polyimide film and method for producing same1 Oct 2026US 2026/0297270 A1PI Advanced Materials Co., Ltd.
- Molded polyimide article10 Sep 2026US 2026/0265493 A1
- Polyimide resin precursor, polyimide resin, and polyimide film20 Aug 2026US 2026/0242541 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Novel polyetherimides143US 3,983,093 AGeneral Electric Company · 1976
- Polyimide gas separation membranes106US 4,717,393 AE. I. Du Pont de Nemours and Company · 1988
- Gas separation membrane84US 5,071,452 AInstitut Francais du Petrole · 1991
- High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes76US 8,127,936 B2Uop LLC · 2012
- Flexible multi-layer polyimide film laminates and preparation thereof66US 5,298,331 AE. I. Du Pont de Nemours and Company · 1994