C08L 67/03
The dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy
Official title: the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
C08L67/03 (The dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy) appears on 500 US grants and 533 published applications in this corpus.
Search patents in C08L- Granted patents
- 500
- Published applications
- 533
- Assignees
- 273
- Inventors
- 1,305
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 10 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 13 | 0 |
| 1993 | 18 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 8 |
| 2003 | 9 | 5 |
| 2004 | 2 | 5 |
| 2005 | 2 | 10 |
| 2006 | 5 | 8 |
| 2007 | 6 | 11 |
| 2008 | 3 | 4 |
| 2009 | 4 | 8 |
| 2010 | 2 | 9 |
| 2011 | 3 | 16 |
| 2012 | 6 | 13 |
| 2013 | 9 | 33 |
| 2014 | 13 | 41 |
| 2015 | 22 | 31 |
| 2016 | 18 | 19 |
| 2017 | 28 | 27 |
| 2018 | 19 | 40 |
| 2019 | 23 | 30 |
| 2020 | 40 | 41 |
| 2021 | 21 | 49 |
| 2022 | 35 | 37 |
| 2023 | 23 | 33 |
| 2024 | 27 | 31 |
| 2025 | 23 | 10 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Biologically degradable polymer mixture148US 6,096,809 ABio-Tec Biologische Naturverpackungen GmbH · 2000
- Compositions and methods for manufacturing thermoplastic starch blends101US 6,235,816 B1Biotec Biologische Naturverpackungen GmbH & Co. KG · 2001
- Biodegradable polymer blends for use in making films, sheets and other articles of manufacture73US 7,214,414 B2biotec Biologische Naturverpackungen Gmb · 2007
- Polymer blends with improved hydrolytic stability62US 4,304,709 AHooker Chemicals & Plastics Corporation · 1981
- Biodegradable polymer blends for use in making films, sheets and other articles of manufacture60US 7,241,832 B2Bio-Tec Biologische Naturverpackungen GmbH · 2007