C08G 63/664
Derived from hydroxy carboxylic acids
Official title: derived from hydroxy carboxylic acids
C08G63/664 (Derived from hydroxy carboxylic acids) appears on 459 US grants and 454 published applications in this corpus.
Search patents in C08G- Granted patents
- 459
- Published applications
- 454
- Assignees
- 329
- Inventors
- 1,330
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 12 | 0 |
| 1996 | 20 | 0 |
| 1997 | 22 | 0 |
| 1998 | 19 | 0 |
| 1999 | 19 | 0 |
| 2000 | 13 | 0 |
| 2001 | 10 | 4 |
| 2002 | 11 | 10 |
| 2003 | 8 | 10 |
| 2004 | 7 | 13 |
| 2005 | 7 | 11 |
| 2006 | 11 | 14 |
| 2007 | 5 | 24 |
| 2008 | 4 | 10 |
| 2009 | 6 | 13 |
| 2010 | 5 | 10 |
| 2011 | 7 | 24 |
| 2012 | 13 | 16 |
| 2013 | 18 | 31 |
| 2014 | 14 | 20 |
| 2015 | 21 | 25 |
| 2016 | 23 | 17 |
| 2017 | 16 | 21 |
| 2018 | 16 | 12 |
| 2019 | 17 | 21 |
| 2020 | 12 | 15 |
| 2021 | 6 | 17 |
| 2022 | 8 | 27 |
| 2023 | 9 | 20 |
| 2024 | 15 | 32 |
| 2025 | 15 | 21 |
| 2026 | 10 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymer and composition from renewable source29 Sep 2026US 12,747,319 B2Åbo Akademi University
- Tissue restoration composition26 May 2026US 12,636,410 B2Dexlevo Inc.
- Method for sequence controllable block copolymerization of cyclic ester and epoxy monomers28 Apr 2026US 12,612,490 B2South China University of Technology
- Absorbable poly(p-dioxanone) pellets made from slow-to-crystallize ground resin and its fines7 Apr 2026US 12,594,692 B2Cilag GmbH International
- Tri-block copolymers and nano-fibrous gelling microspheres including the same31 Mar 2026US 12,590,188 B2The Regents of the University of Michigan
- Unsaturated polymer electrolytes, and methods for producing and using same in electrochemical applications1 Oct 2026US 2026/0302332 A1Hydro-Quebec
- Tissue restoration composition24 Sep 2026US 2026/0284274 A1Dexlevo Inc.
- Molded body, downhole tool member, and downhole tool24 Sep 2026US 2026/0286043 A1Kureha Corporation
- Biobased polyesters and methods of making and using same24 Sep 2026US 2026/0286044 A1Solugen, Inc.
- Polyester-polyethylene glycol block copolymer, preparation method therefor, and use thereof3 Sep 2026US 2026/0258195 A1Hangzhou Shixi Pharmaceutical Technology Co., Ltd.
Most cited
By later US patents
- Elastomeric medical device1,893US 5,468,253 AEthicon, Inc. · 1995
- Elastomeric medical device1,455US 5,713,920 AEthicon, Inc. · 1998
- Injectable liquid copolymers for soft tissue repair and augmentation1,373US 5,824,333 AEthicon, Inc. · 1998
- Biodegradable injectable nanoparticles724US 5,543,158 AMassachusetts Institute of Technology · 1996
- Hydrogels of absorbable polyoxaesters413US 5,698,213 AEthicon, Inc. · 1997