C07C 51/02
From salts of carboxylic acids
Official title: from salts of carboxylic acids
C07C51/02 (From salts of carboxylic acids) appears on 255 US grants and 278 published applications in this corpus.
Search patents in C07C- Granted patents
- 255
- Published applications
- 278
- Assignees
- 174
- Inventors
- 691
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 10 | 6 |
| 2003 | 5 | 3 |
| 2004 | 2 | 5 |
| 2005 | 2 | 8 |
| 2006 | 3 | 7 |
| 2007 | 5 | 8 |
| 2008 | 14 | 13 |
| 2009 | 9 | 8 |
| 2010 | 5 | 11 |
| 2011 | 6 | 16 |
| 2012 | 7 | 14 |
| 2013 | 6 | 28 |
| 2014 | 18 | 17 |
| 2015 | 19 | 14 |
| 2016 | 9 | 16 |
| 2017 | 10 | 10 |
| 2018 | 13 | 10 |
| 2019 | 5 | 9 |
| 2020 | 10 | 3 |
| 2021 | 6 | 12 |
| 2022 | 5 | 13 |
| 2023 | 7 | 14 |
| 2024 | 11 | 18 |
| 2025 | 8 | 10 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transport media for clinical specimen collection and molecular diagnostic applications and methods of production and use thereof7 Jul 2026US 12,674,157 B2Siemens Healthcare Diagnostics Inc.
- Process for manufacturing high-purity magnesium oxide19 May 2026US 12,630,437 B2Purac Biochem B. V.
- Formate production method, formic acid production method, and antifreezing agent production method21 Apr 2026US 12,606,513 B2Nitto Denko Corporation
- Preparation method of biobased adipic acid31 Mar 2026US 12,590,050 B2Beijing University of Chemical Technology
- Process for extracting aromatic dicarboxylic acids from their metal salts16 Dec 2025US 12,497,346 B2Rittec Umwelttechnik GmbH
- Processes for the production of lactic acid with concurrent recovery and reuse of by-products thereof1 Oct 2026US 2026/0297009 A1
- Transport media for clinical specimen collection and molecular diagnostic applications and methods of production and use thereof24 Sep 2026US 2026/0286337 A1Siemens Healthcare Diagnostics Inc.
- Method for producing regenerated terephthalic acid characterized by not using organic solvent and regenerated terephthalic acid produced thereby16 Jul 2026US 2026/0200823 A1Terracle Co., Ltd.
- Enantiomeric enrichment of l-lactic acid or salt thereof26 Feb 2026US 2026/0055044 A1TripleW Ltd.
- Process for preparing an aqueous lactate solution5 Feb 2026US 2026/0035329 A1
Most cited
By later US patents
- Process for the production and purification of succinic acid111US 5,143,834 A1992
- Fermentation and purification process for succinic acid101US 5,168,055 A1992
- Recovery of organic acids88US 7,601,865 B2ZeaChem, Inc. · 2009
- Apparatus and process for electrodialysis of salts67US 6,221,225 B1Archer Daniels Midland Company · 2001
- Sorption of carboxylic acid from carboxylic salt solutions at PHS close to or above the pK.sub.a of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine66US 5,132,456 AThe Regents of the University of California · 1992