C08G 63/672
Dicarboxylic acids and dihydroxy compounds
C08G63/672 (Dicarboxylic acids and dihydroxy compounds) appears on 971 US grants and 1,049 published applications in this corpus.
Search patents in C08G- Granted patents
- 971
- Published applications
- 1,049
- Assignees
- 450
- Inventors
- 2,598
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 11 | 0 |
| 1978 | 22 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 18 | 0 |
| 1982 | 11 | 0 |
| 1983 | 9 | 0 |
| 1984 | 16 | 0 |
| 1985 | 13 | 0 |
| 1986 | 9 | 0 |
| 1987 | 14 | 0 |
| 1988 | 13 | 0 |
| 1989 | 6 | 0 |
| 1990 | 16 | 0 |
| 1991 | 13 | 0 |
| 1992 | 15 | 0 |
| 1993 | 17 | 0 |
| 1994 | 11 | 0 |
| 1995 | 11 | 0 |
| 1996 | 16 | 0 |
| 1997 | 21 | 0 |
| 1998 | 19 | 0 |
| 1999 | 13 | 0 |
| 2000 | 18 | 0 |
| 2001 | 21 | 14 |
| 2002 | 22 | 15 |
| 2003 | 25 | 17 |
| 2004 | 9 | 27 |
| 2005 | 12 | 22 |
| 2006 | 12 | 16 |
| 2007 | 11 | 18 |
| 2008 | 4 | 14 |
| 2009 | 7 | 16 |
| 2010 | 10 | 27 |
| 2011 | 7 | 30 |
| 2012 | 18 | 24 |
| 2013 | 23 | 44 |
| 2014 | 27 | 20 |
| 2015 | 18 | 26 |
| 2016 | 21 | 34 |
| 2017 | 23 | 44 |
| 2018 | 22 | 31 |
| 2019 | 30 | 63 |
| 2020 | 36 | 72 |
| 2021 | 38 | 80 |
| 2022 | 43 | 73 |
| 2023 | 35 | 100 |
| 2024 | 57 | 98 |
| 2025 | 56 | 62 |
| 2026 | 41 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyester copolymer having excellent strength, and product comprising the same6 Oct 2026US 12,753,276 B2SK Chemicals Co., Ltd.
- Polyesters1 Sep 2026US 12,723,131 B2The Procter & Gamble Company
- Copolyetherester1 Sep 2026US 12,723,153 B2Celanese Polymers Holding, Inc.
- Heat-shrinkable polyester film, heat-shrinkable label, and package product11 Aug 2026US 12,703,770 B2Toyobo Co., Ltd.
- Battery, positive electrode plate, positive electrode slurry, and dispersant and preparation method thereof11 Aug 2026US 12,706,310 B2Contemporary Amperex Technology (Hong Kong) Limited
- Thermoplastic polyester elastomer resin and preparation method therefor8 Oct 2026US 2026/0308314 A1SK Chemicals Co., Ltd.
- Branched polyester composition for powder coatings8 Oct 2026US 2026/0308411 A1Arkema Quimica SAU (ES/ES)
- Oriented polyester film and manufacturing method therefor1 Oct 2026US 2026/0297248 A1SK Chemicals Co., Ltd.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Oct 2026US 2026/0299445 A1KYOCERA Document Solutions Inc.
- Low residual momomer glycol aromatic polyester polyols24 Sep 2026US 2026/0286036 A1Stepan Company
Most cited
By later US patents
- Hydrogels of absorbable polyoxaesters413US 5,698,213 AEthicon, Inc. · 1997
- Hydrogels of absorbable polyoxaesters containing amines or amido groups336US 5,700,583 AEthicon, Inc. · 1997
- Absorbable polyoxaesters334US 5,464,929 AEthicon, Inc. · 1995
- Absorbable polyoxaesters310US 5,618,552 AEthicon, Inc. · 1997
- Polymer blends containing absorbable polyoxaesters306US 5,607,687 AEthicon, Inc. · 1997