C12P 7/52
Propionic acid
Official title: Propionic acid; Butyric acids
C12P7/52 (Propionic acid) appears on 306 US grants and 506 published applications in this corpus.
Search patents in C12P- Granted patents
- 306
- Published applications
- 506
- Assignees
- 230
- Inventors
- 996
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 5 |
| 2008 | 1 | 4 |
| 2009 | 1 | 11 |
| 2010 | 1 | 15 |
| 2011 | 5 | 21 |
| 2012 | 11 | 22 |
| 2013 | 16 | 31 |
| 2014 | 27 | 47 |
| 2015 | 20 | 44 |
| 2016 | 27 | 35 |
| 2017 | 29 | 39 |
| 2018 | 27 | 28 |
| 2019 | 18 | 35 |
| 2020 | 18 | 24 |
| 2021 | 19 | 25 |
| 2022 | 4 | 18 |
| 2023 | 16 | 26 |
| 2024 | 21 | 31 |
| 2025 | 19 | 18 |
| 2026 | 7 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing carbon compound of acetogen strain through semi-mixotrophic fermentation supplemented absorbent resin1 Sep 2026US 12,723,269 B2Korea Institute of Science and Technology
- Aqueous compositions comprising 6-undecanol-esters19 May 2026US 12,629,324 B2Evonik Operations GmbH
- Methods for improving yields of L-glufosinate24 Feb 2026US 12,559,777 B2BASF SE
- Processes for converting biomass into high-value products17 Feb 2026US 12,553,022 B2
- Fluoroacetate dehalogenase mutant and application thereof13 Jan 2026US 12,522,850 B2Abiochem Biotechnology (Group) Co., Ltd.
- Glycerol dehydratase variant and use thereof1 Oct 2026US 2026/0297635 A1Ajou University Industry-Academic Cooperation Foundation
- Foodstuff containing r 1,3 butanediol for ketosis, energy, and mental clarity17 Sep 2026US 2026/0275391 A1KetoneAid Inc.
- 3-hydroxypropionic acid production using yeast at an industrially relevant scale10 Sep 2026US 2026/0265766 A1The Board of Trustees of the University of Illinois
- Carbon dioxide fixation strain and method for producing metabolites using same10 Sep 2026US 2026/0265788 A1Korea Institute of Science and Technology
- Method for improving flavor10 Sep 2026US 2026/0265791 A1Ajinomoto Co., Inc.
Most cited
By later US patents
- 3-hydroxypropionic acid and other organic compounds129US 7,186,541 B2Cargill, Incorporated · 2007
- 3-Hydroxypropionic acid and other organic compounds128US 7,393,676 B2Cargill, Incorporated · 2008
- Continuous two stage, dual path anaerobic fermentation of butanol and other organic solvents using two different strains of bacteria97US 5,753,474 AEnvironmental Energy, Inc. · 1998
- Compositions and methods for the biosynthesis of 1,4-butanediol and its precursors53US 8,067,214 B2Genomatica, Inc. · 2011
- Processing biomass49US 8,236,535 B2Xyleco, Inc. · 2012