C12P 7/44
Polycarboxylic acids
C12P7/44 (Polycarboxylic acids) appears on 838 US grants and 1,109 published applications in this corpus.
Search patents in C12P- Granted patents
- 838
- Published applications
- 1,109
- Assignees
- 445
- Inventors
- 2,291
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 9 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 14 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 0 |
| 2002 | 9 | 5 |
| 2003 | 5 | 19 |
| 2004 | 4 | 9 |
| 2005 | 0 | 15 |
| 2006 | 8 | 18 |
| 2007 | 13 | 16 |
| 2008 | 7 | 16 |
| 2009 | 8 | 24 |
| 2010 | 12 | 41 |
| 2011 | 13 | 50 |
| 2012 | 22 | 60 |
| 2013 | 28 | 70 |
| 2014 | 56 | 84 |
| 2015 | 42 | 105 |
| 2016 | 54 | 68 |
| 2017 | 57 | 71 |
| 2018 | 67 | 70 |
| 2019 | 42 | 75 |
| 2020 | 57 | 62 |
| 2021 | 49 | 41 |
| 2022 | 35 | 43 |
| 2023 | 33 | 40 |
| 2024 | 20 | 49 |
| 2025 | 31 | 29 |
| 2026 | 16 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recombinant endoxylanases and related compositions and methods of use25 Aug 2026US 12,716,082 B2Arizona Board of Regents on behalf of Arizona State University
- Methods and systems for producing organic compounds in a subterranean environment25 Aug 2026US 12,716,334 B2Cemvita Factory, Inc.
- Method of producing carboxylic acid18 Aug 2026US 12,709,763 B2Toray Industries, Inc.
- Degradable bio-based polymers11 Aug 2026US 12,703,768 B2Algenesis Corporation
- Use of microbial cell lines to maximize organic acid production7 Jul 2026US 12,674,189 B2J&K Ingredients, LLC
- Modified polypeptide having pet degradation activity8 Oct 2026US 2026/0308544 A1Cj Cheiljedang Corporation
- Novel pet-degrading enzyme and use thereof8 Oct 2026US 2026/0308545 A1Cj Cheiljedang Corporation
- Novel pet degrading enzyme and use thereof8 Oct 2026US 2026/0308546 A1Cj Cheiljedang Corporation
- Process for preparing cadaverine adipate24 Sep 2026US 2026/0286404 A1Cj Cheiljedang Corporation
- Improved methods of cell-free synthesis17 Sep 2026US 2026/0275396 A1
Most cited
By later US patents
- Production of lactate using crabtree negative organisms in varying culture conditions190US 6,485,947 B1Cargill Dow Polymers, LLC · 2002
- Method for the production of dicarboxylic acids135US 5,869,301 ALockhead Martin Energy Research Corporation · 1999
- Bacterial cell tranformants for production of cis, cis-muconic acid and catechol123US 5,616,496 APurdue Research Foundation · 1997
- Synthesis of adipic acid from biomass-derived carbon sources122US 5,487,987 APurdue Research Foundation · 1996
- Mutant E. coli strain with increased succinic acid production118US 7,223,567 B2Rice University · 2007