C08G 73/121
Preparatory processes from unsaturated precursors and polyamines
Official title: {Preparatory processes from unsaturated precursors and polyamines}
C08G73/121 (Preparatory processes from unsaturated precursors and polyamines) appears on 240 US grants and 114 published applications in this corpus.
Search patents in C08G- Granted patents
- 240
- Published applications
- 114
- Assignees
- 112
- Inventors
- 443
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 11 | 0 |
| 1990 | 13 | 0 |
| 1991 | 12 | 0 |
| 1992 | 19 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 0 | 1 |
| 2003 | 3 | 7 |
| 2004 | 3 | 2 |
| 2005 | 8 | 4 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 6 |
| 2011 | 3 | 2 |
| 2012 | 5 | 3 |
| 2013 | 1 | 1 |
| 2014 | 4 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 2 |
| 2017 | 1 | 6 |
| 2018 | 1 | 6 |
| 2019 | 4 | 8 |
| 2020 | 6 | 6 |
| 2021 | 1 | 10 |
| 2022 | 7 | 12 |
| 2023 | 5 | 7 |
| 2024 | 10 | 10 |
| 2025 | 7 | 5 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photosensitive polyimide compositions9 Jun 2026US 12,650,646 B2Promerus, LLC
- Branched amorphous polyamide (co)polymers and methods of making and using same24 Feb 2026US 12,559,592 B23M Innovative Properties Company
- Adhesive composition, adhesive tape, and method for processing electronic component30 Dec 2025US 12,509,612 B2Sekisui Chemical Co., Ltd.
- Resin composition2 Sep 2025US 12,404,398 B2Nan Ya Plastics Corporation
- Self-sensitizing negative polyimide precursor and method for preparing the same, and use thereof5 Aug 2025US 12,378,361 B1Shandong Normal University
- Method for producing maleimide resin1 Oct 2026US 2026/0297262 A1
- Compositions for forming polyimide coatings13 Aug 2026US 2026/0234438 A1Hd Microsystems, Ltd.
- Reprocessable and degradable bismaleimide resin16 Jul 2026US 2026/0201114 A1Soochow University
- Resin composition and prepreg and metal clad laminate including the same9 Jul 2026US 2026/0193419 A1Nan Ya Plastics Corporation
- Resin composition, cured product, prepreg, metal foil-clad laminate, resin composite sheet, and printed wiring board18 Jun 2026US 2026/0167815 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Curable resin compositions of cyanate esters89US 4,110,364 AMitsubishi Gas Chemical Company, Inc. · 1978
- Bismaleimide-divinyl adhesive compositions and uses therefor58US 6,034,194 AQuantum Materials/Dexter Corporation · 2000
- Thermosetting resin compositions containing maleimide and/or vinyl compounds57US 6,034,195 AThe Dexter Corporation · 2000
- Ethnyl terminated polyimide composites48US 4,100,138 AHughes Aircraft Company · 1978
- Polymer from substituted, unsaturated, bicyclic imide48US 4,604,437 ACiba-Geigy Corporation · 1986