B01J 2231/52
Isomerisation reactions
B01J2231/52 (Isomerisation reactions) appears on 276 US grants and 162 published applications in this corpus.
Search patents in B01J- Granted patents
- 276
- Published applications
- 162
- Assignees
- 140
- Inventors
- 561
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 24 | 0 |
| 1999 | 18 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 5 |
| 2002 | 10 | 5 |
| 2003 | 8 | 14 |
| 2004 | 9 | 14 |
| 2005 | 5 | 10 |
| 2006 | 11 | 9 |
| 2007 | 6 | 7 |
| 2008 | 3 | 2 |
| 2009 | 3 | 5 |
| 2010 | 6 | 5 |
| 2011 | 3 | 1 |
| 2012 | 4 | 2 |
| 2013 | 0 | 4 |
| 2014 | 4 | 5 |
| 2015 | 5 | 8 |
| 2016 | 3 | 5 |
| 2017 | 5 | 4 |
| 2018 | 5 | 6 |
| 2019 | 4 | 7 |
| 2020 | 3 | 4 |
| 2021 | 3 | 5 |
| 2022 | 2 | 10 |
| 2023 | 5 | 7 |
| 2024 | 5 | 10 |
| 2025 | 2 | 3 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air-stable ni(0)-olefin complexes and their use as catalysts or precatalysts24 Feb 2026US 12,558,677 B2Studiengesellschaft Kohle mbH
- Arsenic-containing ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions13 Jan 2026US 12,521,703 B1INV Nylon Chemicals Americas, LLC
- Use of a multidentate phosphite ligand in the catalytic synthesis of adiponitrile17 Jun 2025US 12,331,007 B2Zhejiang Nhu Company Ltd.
- Isomerization of linear olefins with solid acid catalysts and primary esters8 Apr 2025US 12,269,796 B2Chevron Phillips Chemical Company LP
- Selective 1-hexene/1-octene production with 1-decene26 Nov 2024US 12,151,993 B2Chevron Phillips Chemical Company LP
- Process for preparing 2,3-unsaturated alcohols8 Oct 2026US 2026/0308092 A1BASF SE
- Process for preparing allylic alcohol6 Aug 2026US 2026/0225981 A1
- Process and catalyst composition for preparing organosilicon compounds via isomerization of internal olefins and hydrosilylation6 Aug 2026US 2026/0226081 A1Dow Silicones Corporation
- Arsenic-containing ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions15 Jan 2026US 2026/0014551 A1INV Nylon Chemicals Americas, LLC
- Bidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions15 Jan 2026US 2026/0014552 A1Invista Textiles (U.K.) Limited
Most cited
By later US patents
- Vinly-substituted bridged metallocenes111US 5,565,592 APhillips Petroleum Company · 1996
- Method for depositing a fluorocarbonsulfonic acid polymer on a support from a solution104US 4,661,411 AThe Dow Chemical Company · 1987
- Metallocenes and processes therefor and therewith66US 5,466,766 APhillips Petroleum Company · 1995
- Functionalized ionic liquids, and methods of use thereof64US 7,208,605 B2University of South Alabama · 2007
- Hydrocarbon conversion process using a supported perfluorinated polymer catalyst61US 4,038,213 AShell Oil Company · 1977