C08G 63/08
Lactones or lactides
C08G63/08 (Lactones or lactides) appears on 1,114 US grants and 1,294 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,114
- Published applications
- 1,294
- Assignees
- 680
- Inventors
- 3,022
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 19 | 0 |
| 1988 | 18 | 0 |
| 1989 | 11 | 0 |
| 1990 | 6 | 0 |
| 1991 | 17 | 0 |
| 1992 | 11 | 0 |
| 1993 | 24 | 0 |
| 1994 | 22 | 0 |
| 1995 | 22 | 0 |
| 1996 | 24 | 0 |
| 1997 | 14 | 0 |
| 1998 | 31 | 0 |
| 1999 | 16 | 0 |
| 2000 | 17 | 0 |
| 2001 | 21 | 4 |
| 2002 | 21 | 15 |
| 2003 | 14 | 24 |
| 2004 | 14 | 30 |
| 2005 | 9 | 17 |
| 2006 | 21 | 17 |
| 2007 | 7 | 23 |
| 2008 | 7 | 31 |
| 2009 | 8 | 39 |
| 2010 | 13 | 43 |
| 2011 | 15 | 46 |
| 2012 | 29 | 48 |
| 2013 | 38 | 54 |
| 2014 | 40 | 57 |
| 2015 | 45 | 71 |
| 2016 | 45 | 68 |
| 2017 | 45 | 59 |
| 2018 | 52 | 73 |
| 2019 | 53 | 59 |
| 2020 | 53 | 88 |
| 2021 | 55 | 82 |
| 2022 | 48 | 72 |
| 2023 | 46 | 68 |
| 2024 | 44 | 85 |
| 2025 | 38 | 71 |
| 2026 | 31 | 50 |
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
- Piezoelectric polylactic acid material and preparation method and application thereof22 Sep 2026US 12,742,038 B2Ningbo Michi Technology Co., Ltd.
- Modified ethylene-vinyl alcohol resin and production method therefor25 Aug 2026US 12,715,964 B2Mitsubishi Chemical Corporation
- Method for producing aliphatic polyester, aliphatic polyester resin, and aliphatic polyester resin composition7 Jul 2026US 12,674,022 B2Teijin Limited
- Thin film cell encapsulation devices7 Jul 2026US 12,674,132 B2The Regents of the University of California
- Process for preparing crystallized polylactide8 Oct 2026US 2026/0308311 A1Totalenergies Corbion BV
- Method for producing aliphatic polyester, aliphatic polyester resin, and aliphatic polyester resin composition8 Oct 2026US 2026/0308312 A1Teijin Limited
- Method for purifying a crystalline substance1 Oct 2026US 2026/0297051 A1China Petroleum & Chemical Corporation
- Resin composition1 Oct 2026US 2026/0297245 A1Kuraray Co., Ltd.
- Lactone-based vitrimers1 Oct 2026US 2026/0297246 A1Georgia Tech Research Corporation
Most cited
By later US patents
- Elastomeric medical device1,893US 5,468,253 AEthicon, Inc. · 1995
- Poly(L-lactide-co-glycolide) copolymers, methods for making and using same, and devices containing same1,551US 6,747,121 B2Synthes USA, LLC · 2004
- End use applications of biodegradable polymers1,525US 5,444,113 AEcopol, LLC · 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