C08L 67/04
Polyesters derived from hydroxycarboxylic acids
Official title: Polyesters derived from hydroxycarboxylic acids, e.g. lactones (C08L67/06 takes precedence)
C08L67/04 (Polyesters derived from hydroxycarboxylic acids) appears on 1,963 US grants and 2,757 published applications in this corpus.
Search patents in C08L- Granted patents
- 1,963
- Published applications
- 2,757
- Assignees
- 1,203
- Inventors
- 5,455
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 22 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 3 | 0 |
| 1992 | 11 | 0 |
| 1993 | 20 | 0 |
| 1994 | 23 | 0 |
| 1995 | 28 | 0 |
| 1996 | 29 | 0 |
| 1997 | 41 | 0 |
| 1998 | 41 | 0 |
| 1999 | 33 | 0 |
| 2000 | 31 | 0 |
| 2001 | 40 | 3 |
| 2002 | 21 | 34 |
| 2003 | 31 | 34 |
| 2004 | 22 | 48 |
| 2005 | 24 | 50 |
| 2006 | 19 | 59 |
| 2007 | 35 | 64 |
| 2008 | 28 | 71 |
| 2009 | 21 | 114 |
| 2010 | 40 | 143 |
| 2011 | 63 | 135 |
| 2012 | 72 | 115 |
| 2013 | 91 | 140 |
| 2014 | 93 | 133 |
| 2015 | 101 | 130 |
| 2016 | 98 | 154 |
| 2017 | 96 | 90 |
| 2018 | 93 | 120 |
| 2019 | 72 | 127 |
| 2020 | 96 | 132 |
| 2021 | 97 | 157 |
| 2022 | 77 | 140 |
| 2023 | 78 | 151 |
| 2024 | 96 | 161 |
| 2025 | 72 | 142 |
| 2026 | 55 | 110 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Blow-molded article and method for producing the same6 Oct 2026US 12,752,469 B2Kaneka Corporation
- Method for producing molded body containing poly-3-hydroxybutyrate-based resin, and use of same22 Sep 2026US 12,741,409 B2Kaneka Corporation
- Bio-based plasticiser for resins and blends containing said plasticiser8 Sep 2026US 12,729,270 B2Teknologiselskabet af 2025 ApS
- Additive composition and use thereof, condensation polymer composition, molding compound and molding compounds produced therefrom, and molded parts and use thereof8 Sep 2026US 12,729,283 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Biodegradgradable devices, and methods of making the same8 Sep 2026US 12,729,301 B2United Arab Emirates University
- Hybrid three-dimensional printing and electrospinning platform for multi-layered biomimetic scaffolds8 Oct 2026US 2026/0306705 A1
- Method for producing aliphatic polyester, aliphatic polyester resin, and aliphatic polyester resin composition8 Oct 2026US 2026/0308312 A1Teijin Limited
- Thermoplastic collagen compositions comprising polyesters8 Oct 2026US 2026/0308379 A1
- Resin composition and resin modifying agent1 Oct 2026US 2026/0297322 A1Kuraray Co., Ltd.
- Masterbatch of highly loaded amorphous pha dispersed in amorphous or semi-crystalline polymer and method of producing the same1 Oct 2026US 2026/0297323 A1Cj Cheiljedang Corporation
Most cited
By later US patents
- Medical devices and applications of polyhydroxyalkanoate polymers1,636US 6,838,493 B2Metabolix, Inc. · 2005
- End use applications of biodegradable polymers1,525US 5,444,113 AEcopol, LLC · 1995
- Bioabsorbable medical implants1,504US 5,674,286 AUnited States Surgical Corporation · 1997
- Reception system for an interactive computer network and method of operation1,329US 5,347,632 AProdigy Services Company · 1994
- Prosthetic disc and method of implanting1,066US 4,772,287 ACedar Surgical, Inc. · 1988