C08G 63/40
Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds
Official title: Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
C08G63/40 (Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds) appears on 261 US grants and 209 published applications in this corpus.
Search patents in C08G- Granted patents
- 261
- Published applications
- 209
- Assignees
- 188
- Inventors
- 726
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 16 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 2 |
| 2003 | 2 | 6 |
| 2004 | 1 | 5 |
| 2005 | 3 | 4 |
| 2006 | 2 | 5 |
| 2007 | 3 | 4 |
| 2008 | 2 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 7 |
| 2011 | 2 | 4 |
| 2012 | 2 | 6 |
| 2013 | 6 | 5 |
| 2014 | 7 | 8 |
| 2015 | 6 | 9 |
| 2016 | 8 | 9 |
| 2017 | 6 | 6 |
| 2018 | 5 | 12 |
| 2019 | 8 | 14 |
| 2020 | 7 | 12 |
| 2021 | 7 | 22 |
| 2022 | 10 | 17 |
| 2023 | 10 | 9 |
| 2024 | 10 | 17 |
| 2025 | 12 | 10 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing polyester resin by using regenerated bis(2-hydroxyethyl) terephthalate aqueous solution23 Jun 2026US 12,662,585 B2SK Chemicals Co., Ltd.
- Renewable monomer and polymer thereof5 May 2026US 12,617,800 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Polymer resin compound, method for producing same, and photosensitive resin composition comprising same17 Mar 2026US 12,577,393 B2LG Chem.Ltd.
- Resin, preparation method therefor, resin composition, and molded article6 Jan 2026US 12,516,151 B2LG Chem.Ltd.
- Polyester resin28 Oct 2025US 12,454,597 B2Mitsubishi Chemical Corporation
- Polyesters and a process for preparing these polyesters8 Oct 2026US 2026/0308313 A1Evonik Operations GmbH
- Fabric and home care composition comprising a polyester17 Sep 2026US 2026/0275244 A1The Procter & Gamble Company
- Cavity forming composition27 Aug 2026US 2026/0250517 A1Nissan Chemical Corporation
- Polyester resin, method for manufacturing same, and article produced therefrom16 Jul 2026US 2026/0201113 A1SK Chemicals Co., Ltd.
- Process for the production of a polyester (co)polymer11 Jun 2026US 2026/0159643 A1Avantium Knowledge Centre B.V.
Most cited
By later US patents
- Biodegradable poly(β-amino esters) and uses thereof142US 7,427,394 B2Massachusetts Institute of Technology · 2008
- Method for preparing and polymerizing macrocyclic poly(alkylene discarboxylate) oligomers77US 5,039,783 AGeneral Electric Company · 1991
- Method for preparation of macrocyclic poly(alkylene dicarboxylate) oligomers from bis(hydroxyalkyl) dicarboxylates66US 5,231,161 AGeneral Electric Company · 1993
- Powder coating composition employing mixture of polyepoxide resin with modified polyester resin65US 4,147,737 AInternationale Octrooi Maatschappij "Octropa" B.V. · 1979
- Hydroxy-functional polyesters as thermoplastic barrier resins59US 5,171,820 AThe Dow Chemical Company · 1992