C08G 73/16
Polyester-imides
C08G73/16 (Polyester-imides) appears on 338 US grants and 223 published applications in this corpus.
Search patents in C08G- Granted patents
- 338
- Published applications
- 223
- Assignees
- 183
- Inventors
- 799
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 19 | 0 |
| 1979 | 17 | 0 |
| 1980 | 9 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 15 | 0 |
| 1988 | 21 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 5 |
| 2003 | 4 | 3 |
| 2004 | 2 | 6 |
| 2005 | 2 | 5 |
| 2006 | 2 | 5 |
| 2007 | 5 | 6 |
| 2008 | 0 | 2 |
| 2009 | 4 | 5 |
| 2010 | 2 | 10 |
| 2011 | 3 | 6 |
| 2012 | 3 | 5 |
| 2013 | 3 | 7 |
| 2014 | 1 | 5 |
| 2015 | 9 | 13 |
| 2016 | 6 | 10 |
| 2017 | 9 | 9 |
| 2018 | 6 | 8 |
| 2019 | 8 | 13 |
| 2020 | 12 | 11 |
| 2021 | 8 | 10 |
| 2022 | 4 | 20 |
| 2023 | 9 | 11 |
| 2024 | 5 | 23 |
| 2025 | 12 | 15 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyesteramides, processes for the preparation thereof, and polyesteramide compositions15 Sep 2026US 12,735,568 B2Eastman Chemical Company
- Imide-containing polyester polyols and intumescent rigid foams26 May 2026US 12,637,534 B2Stepan Company
- Polyimide precursor composition and optical multilayer structure formed using the same19 May 2026US 12,630,739 B2SK Innovation Co., Ltd.
- Polyester polyol comprising an imide moiety and methods of manufacture thereof2 Dec 2025US 12,486,362 B2Huntsman International LLC
- Method of insulating a motor2 Dec 2025US 12,486,426 B2Suzhou Jufeng Electrical Insulation System Co., Ltd.
- Polyimide resin precursor, polyimide resin, and polyimide film20 Aug 2026US 2026/0242541 A1Mitsubishi Gas Chemical Company, Inc.
- Method of obtaining insulating coating composition, coating composition and conductive materials comprising the same6 Aug 2026US 2026/0226309 A1Weg Tintas Ltda
- Polymer, negative photosensistive resin composition, patterning process, method for forming cured film, interlayer insulating film, surface protective film, and electronic component11 Jun 2026US 2026/0161079 A1Shin-Etsu Chemical Co., Ltd.
- Imide-containing polyols, methods for making imide-containing polyols and methods for using imide-containing polyols9 Apr 2026US 2026/0098120 A1Dow Global Technologies LLC
- Polyimide precursor composition, polyimide film and polyimide/substrate laminate12 Mar 2026US 2026/0071029 A1Ube Corporation
Most cited
By later US patents
- Negative birefringent polyimide films102US 5,344,916 AThe University of Akron · 1994
- Polyimides, a process for their preparation and their use90US 4,629,777 ACiba-Geigy Corporation · 1986
- Thermoplastic polyetherimide ester elastomers77US 4,556,705 AGeneral Electric Company · 1985
- Method of suturing using a polyetherimide ester suture64US 5,480,411 AUnited States Surgical Corporation · 1996
- Negative birefringent rigid rod polymer films64US 5,580,950 AThe University of Akron · 1996