C08G 73/12
Unsaturated polyimide precursors
C08G73/12 (Unsaturated polyimide precursors) appears on 816 US grants and 525 published applications in this corpus.
Search patents in C08G- Granted patents
- 816
- Published applications
- 525
- Assignees
- 280
- Inventors
- 1,599
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 18 | 0 |
| 1978 | 27 | 0 |
| 1979 | 10 | 0 |
| 1980 | 12 | 0 |
| 1981 | 21 | 0 |
| 1982 | 12 | 0 |
| 1983 | 15 | 0 |
| 1984 | 9 | 0 |
| 1985 | 16 | 0 |
| 1986 | 21 | 0 |
| 1987 | 22 | 0 |
| 1988 | 23 | 0 |
| 1989 | 35 | 0 |
| 1990 | 37 | 0 |
| 1991 | 46 | 0 |
| 1992 | 54 | 0 |
| 1993 | 34 | 0 |
| 1994 | 17 | 0 |
| 1995 | 18 | 0 |
| 1996 | 11 | 0 |
| 1997 | 13 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 2 |
| 2002 | 3 | 5 |
| 2003 | 8 | 7 |
| 2004 | 9 | 10 |
| 2005 | 11 | 7 |
| 2006 | 2 | 6 |
| 2007 | 4 | 7 |
| 2008 | 2 | 7 |
| 2009 | 3 | 11 |
| 2010 | 4 | 17 |
| 2011 | 12 | 10 |
| 2012 | 10 | 11 |
| 2013 | 6 | 11 |
| 2014 | 13 | 9 |
| 2015 | 14 | 1 |
| 2016 | 6 | 14 |
| 2017 | 8 | 23 |
| 2018 | 9 | 34 |
| 2019 | 17 | 22 |
| 2020 | 18 | 28 |
| 2021 | 18 | 44 |
| 2022 | 24 | 38 |
| 2023 | 20 | 49 |
| 2024 | 30 | 52 |
| 2025 | 29 | 62 |
| 2026 | 14 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 73/121Preparatory processes from unsaturated precursors and polyamines240
- C08G 73/126The unsaturated precursors being wholly aromatic150
- C08G 73/125The unsaturated precursors containing atoms other than carbon, hydrogen, oxygen or nitrogen113
- C08G 73/124The unsaturated precursors containing oxygen in the form of ether bonds in103
- C08G 73/123The unsaturated precursors comprising halogen-containing substituents54
- C08G 73/128The unsaturated precursors containing heterocyclic moieties in the main chain50
Recent patents
- Resin composition and article made therefrom29 Sep 2026US 12,747,355 B2Elite Material Co., Ltd.
- Heat-curable bismaleimide resin composition15 Sep 2026US 12,735,535 B2Shin-Etsu Chemical Co., Ltd.
- UV-curable resin compositions suitable for redistribution layers25 Aug 2026US 12,717,232 B2Designer Molecules, Inc.
- Resin composition and article made therefrom21 Jul 2026US 12,686,767 B2Elite Electronic Material (Kunshan) Co., Ltd.
- Photocurable maleimide resin composition16 Jun 2026US 12,655,254 B2Shin-Etsu Chemical Co., Ltd.
- Photosensitive resin composition, cured substance, laminate, manufacturing method for cured substance, manufacturing method for laminate, manufacturing method for semiconductor device, semiconductor device, polyimide, manufacturing method for polyimide, and compound8 Oct 2026US 2026/0310076 A1FUJIFILM Corporation
- Polyimide-based resin precursor, photosensitive resin composition, method for producing resin film, and amic acid ester compound1 Oct 2026US 2026/0297261 A1Resonac Corporation
- Method for producing maleimide resin1 Oct 2026US 2026/0297262 A1
- 3d printing of carbonaceous structures from water1 Oct 2026US 2026/0297263 A1
- Maleimide resin, resin composition, cured product, sheet, laminate, and printed wiring board1 Oct 2026US 2026/0297264 A1Resonac Corporation
Most cited
By later US patents
- Preparation method of peg-maleimide derivatives111US 6,828,401 B2SunBio Inc. · 2004
- Process for the manufacture of crosslinked polymers which contain imide groups104US 4,100,140 ACiba-Geigy Corporation · 1978
- Curable resin compositions of cyanate esters89US 4,110,364 AMitsubishi Gas Chemical Company, Inc. · 1978
- Thermally stable polysulfone compositions for composite structures80US 4,476,184 AThe Boeing Company · 1984
- High temperature three dimensional printing compositions65US 9,708,440 B2Novoset, LLC · 2017