C07C 67/343
By increase in the number of carbon atoms
Official title: by increase in the number of carbon atoms
C07C67/343 (By increase in the number of carbon atoms) appears on 1,087 US grants and 965 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,087
- Published applications
- 965
- Assignees
- 652
- Inventors
- 2,962
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 28 | 0 |
| 1993 | 24 | 0 |
| 1994 | 26 | 0 |
| 1995 | 20 | 0 |
| 1996 | 13 | 0 |
| 1997 | 18 | 0 |
| 1998 | 35 | 0 |
| 1999 | 24 | 0 |
| 2000 | 33 | 0 |
| 2001 | 29 | 15 |
| 2002 | 45 | 42 |
| 2003 | 40 | 30 |
| 2004 | 25 | 50 |
| 2005 | 21 | 38 |
| 2006 | 30 | 37 |
| 2007 | 26 | 22 |
| 2008 | 24 | 35 |
| 2009 | 20 | 56 |
| 2010 | 33 | 44 |
| 2011 | 28 | 51 |
| 2012 | 31 | 48 |
| 2013 | 47 | 44 |
| 2014 | 41 | 50 |
| 2015 | 45 | 52 |
| 2016 | 40 | 49 |
| 2017 | 43 | 37 |
| 2018 | 34 | 36 |
| 2019 | 32 | 44 |
| 2020 | 33 | 40 |
| 2021 | 24 | 29 |
| 2022 | 26 | 39 |
| 2023 | 19 | 25 |
| 2024 | 13 | 23 |
| 2025 | 13 | 15 |
| 2026 | 2 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Preparation method and apparatus for methyl methacrylate16 Jun 2026US 12,655,085 B2Zhejiang Nhu Company Ltd.
- Method for producing organic compound13 Jan 2026US 12,522,577 B2M. Technique Co., Ltd.
- Catalyst and a process for the production of ethylenically unsaturated carboxylic acids or esters7 Oct 2025US 12,434,225 B2Mitsubishi Chemical UK Limited
- Process of preparing 3-fluoro-5(((1R,2AR)-3,3,4,4-tetrafluoro-1,2A-dihydroxy-2,2A,3,4-tetrahydro-1H-cyclopenta[cd]inden-7-yl)-oxy)benzonitrile7 Oct 2025US 12,435,034 B2Nikang Therapeutics, Inc.
- Production method of acrylic acid derivative30 Sep 2025US 12,428,365 B2Daikin Industries, Ltd.
- Method for producing very-long-chain polyunsaturated fatty acid27 Aug 2026US 2026/0250228 A1Nissui Corporation
- Process27 Aug 2026US 2026/0250230 A1Givaudan SA
- Intermolecular cyclopropanation of unsaturated hydrocarbons20 Aug 2026US 2026/0242327 A1The Penn State Research Foundation
- Process for preparing esteramide compounds13 Aug 2026US 2026/0234098 A1Specialty Operations France
- Method for producing compound, polymer, composition, and pattern formation method23 Jul 2026US 2026/0209160 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Immunotherapeutic agents153US 5,929,117 ACelgene Corporation · 1999
- Ligands for metals and improved metal-catalyzed processes based thereon93US 7,223,879 B2Massachusetts Institute of Technology · 2007
- Cosmetic composition comprising 2-hydroxyalkenoic acids or a mixture thereof84US 5,108,751 AChesebrough-Pond' s USA Co., Division of Conopco, Inc. · 1992
- Fused cyclooctyne compounds and their use in metal-free click reactions84US 8,859,629 B2Synaffix B.V. · 2014
- Process for the preparation of alkenylbenzenecarboxylic acid derivatives and alkenylnaphthalenecarboxylic acid derivatives78US 4,335,054 ACiba-Geigy Corporation · 1982