C07C 231/02
From carboxylic acids or from esters, anhydrides, or halides thereof by reaction
Official title: from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
C07C231/02 (From carboxylic acids or from esters, anhydrides, or halides thereof by reaction) appears on 933 US grants and 955 published applications in this corpus.
Search patents in C07C- Granted patents
- 933
- Published applications
- 955
- Assignees
- 629
- Inventors
- 2,927
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 13 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 12 | 0 |
| 1995 | 16 | 0 |
| 1996 | 11 | 0 |
| 1997 | 29 | 0 |
| 1998 | 26 | 0 |
| 1999 | 17 | 0 |
| 2000 | 17 | 0 |
| 2001 | 13 | 2 |
| 2002 | 14 | 10 |
| 2003 | 11 | 15 |
| 2004 | 16 | 30 |
| 2005 | 8 | 31 |
| 2006 | 15 | 19 |
| 2007 | 16 | 25 |
| 2008 | 11 | 23 |
| 2009 | 16 | 35 |
| 2010 | 13 | 43 |
| 2011 | 17 | 52 |
| 2012 | 34 | 47 |
| 2013 | 46 | 73 |
| 2014 | 63 | 59 |
| 2015 | 58 | 50 |
| 2016 | 49 | 48 |
| 2017 | 38 | 47 |
| 2018 | 34 | 53 |
| 2019 | 51 | 48 |
| 2020 | 53 | 49 |
| 2021 | 36 | 36 |
| 2022 | 32 | 38 |
| 2023 | 16 | 42 |
| 2024 | 27 | 26 |
| 2025 | 9 | 30 |
| 2026 | 15 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Industrial synthesis of serinol6 Oct 2026US 12,753,146 B2Bracco Imaging S.P.A.
- Process for the preparation of iopamidol22 Sep 2026US 12,741,931 B2Ge Healthcare Limited
- Method for manufacturing aromatic nitrile compound25 Aug 2026US 12,715,840 B2Ube Corporation
- Acrylate derivatives and uses thereof25 Aug 2026US 12,716,086 B2Expansion Technologies
- Modular lipid compounds and two- to three-component lipid nanoparticle compositions28 Jul 2026US 12,691,068 B2Sun Vax mRNA Therapeutics Inc.
- Compounds and compositions for treating glucose hypometabolic disorders8 Oct 2026US 2026/0306523 A1Senovia Biosciences LLC
- Synthesis of n-lactoyl-phenylalanine (lac-phe) by condensation of a phenylalanine ester and a lactic acid ester8 Oct 2026US 2026/0308112 A1Kemin Industries, Inc.
- Voltage gated sodium channel imaging agents20 Aug 2026US 2026/0242332 A1The General Hospital Corporation
- Process for preparing esteramide compounds13 Aug 2026US 2026/0234098 A1Specialty Operations France
- Processes for producing reaction products including quaternary ammonium salts13 Aug 2026US 2026/0234299 A1The Lubrizol Corporation
Most cited
By later US patents
- Generation of combinatorial libraries199US 5,449,754 AH & N Instruments, Inc. · 1995
- Synthesis of tyrosine derived diphenol monomers141US 5,587,507 ARutgers, The State University · 1996
- Preparation of polyhydroxy fatty acid amides in the presence of solvents89US 5,194,639 AThe Procter & Gamble Company · 1993
- Synthesis of tyrosine-derived diphenol monomers88US 5,670,602 ARutgers, The State University · 1997
- Diaryl ether condensation reactions77US 6,762,329 B2Massachusetts Institute of Technology · 2004