C07C 51/353
By isomerisation
Official title: by isomerisation; by change of size of the carbon skeleton
C07C51/353 (By isomerisation) appears on 476 US grants and 324 published applications in this corpus.
Search patents in C07C- Granted patents
- 476
- Published applications
- 324
- Assignees
- 278
- Inventors
- 1,118
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 15 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 12 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 12 | 0 |
| 1989 | 14 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 14 | 1 |
| 2002 | 17 | 3 |
| 2003 | 7 | 14 |
| 2004 | 10 | 10 |
| 2005 | 7 | 8 |
| 2006 | 10 | 10 |
| 2007 | 1 | 5 |
| 2008 | 4 | 4 |
| 2009 | 4 | 8 |
| 2010 | 1 | 12 |
| 2011 | 5 | 12 |
| 2012 | 5 | 17 |
| 2013 | 15 | 36 |
| 2014 | 30 | 26 |
| 2015 | 26 | 25 |
| 2016 | 23 | 15 |
| 2017 | 19 | 23 |
| 2018 | 23 | 20 |
| 2019 | 12 | 15 |
| 2020 | 9 | 9 |
| 2021 | 8 | 10 |
| 2022 | 8 | 14 |
| 2023 | 5 | 7 |
| 2024 | 8 | 9 |
| 2025 | 2 | 5 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for the preparation of (9S)-2-bromo-9-(2,3,4-trifluorophenyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[1,5-A]azepine6 Oct 2026US 12,753,175 B2Hoffmann-La Roche Inc.
- Isomerization method of cyclohexane dicarboxylic acid21 Apr 2026US 12,606,514 B2Hanwha Solutions Corporation
- Property modulation with chemical transformations16 Dec 2025US 12,497,712 B2The Regents of the University of Michigan
- Catalyst and a process for the production of ethylenically unsaturated carboxylic acids or esters7 Oct 2025US 12,434,225 B2Mitsubishi Chemical UK Limited
- Stilbene derivative and method for preparing same31 Dec 2024US 12,180,152 B2Ozchela Inc.
- Isomerization of cyclohexenedicarboxylic acid and its derivatives17 Sep 2026US 2026/0274780 A1Iowa State University Research Foundation, Inc.
- Method for producing very-long-chain polyunsaturated fatty acid27 Aug 2026US 2026/0250228 A1Nissui Corporation
- Process for recovering acrylic acid value from heavy waste byproducts11 Jun 2026US 2026/0159470 A1Dow Global Technologies LLC
- Intermolecular beta-methylene c-h arylation of free aliphatic acids28 May 2026US 2026/0146018 A1The Scripps Research Institute
- Catalyst and a process for the production of ethylenically unsaturated carboxylic acids or esters1 Jan 2026US 2026/0001058 A1
Most cited
By later US patents
- Olefin metathesis coupling using ruthenium and osmium carbene complexes113US 5,750,815 ACalifornia Institute of Technology · 1998
- Fluorescent labels for immunoassay105US 4,637,988 AEastman Kodak Company · 1987
- Polymer depolymerization using ruthenium and osmium carbene complexes98US 5,728,917 ACalifornia Institute of Technology · 1998
- High activity ruthenium and osmium metal carbene complexes for olefin metathesis reactions95US 5,969,170 ACalifornia Institute of Technology · 1999
- Diene cyclization using ruthenium and osmium carbene complexes84US 5,922,863 ACalifornia Institute of Technology · 1999