B01J 31/2452
With more than one complexing phosphine-p atom
Official title: {with more than one complexing phosphine-P atom}
B01J31/2452 (With more than one complexing phosphine-p atom) appears on 214 US grants and 153 published applications in this corpus.
Search patents in B01J- Granted patents
- 214
- Published applications
- 153
- Assignees
- 121
- Inventors
- 534
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 16 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 17 | 0 |
| 1999 | 15 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 3 |
| 2002 | 6 | 7 |
| 2003 | 6 | 6 |
| 2004 | 5 | 12 |
| 2005 | 8 | 3 |
| 2006 | 2 | 6 |
| 2007 | 5 | 7 |
| 2008 | 3 | 2 |
| 2009 | 2 | 8 |
| 2010 | 6 | 7 |
| 2011 | 2 | 2 |
| 2012 | 2 | 1 |
| 2013 | 3 | 4 |
| 2014 | 4 | 4 |
| 2015 | 4 | 4 |
| 2016 | 5 | 8 |
| 2017 | 6 | 6 |
| 2018 | 2 | 9 |
| 2019 | 7 | 8 |
| 2020 | 4 | 5 |
| 2021 | 7 | 10 |
| 2022 | 6 | 6 |
| 2023 | 8 | 13 |
| 2024 | 3 | 8 |
| 2025 | 3 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air-stable ni(0)-olefin complexes and their use as catalysts or precatalysts24 Feb 2026US 12,558,677 B2Studiengesellschaft Kohle mbH
- Hydrogenation of l-sorbose24 Feb 2026US 12,559,446 B2BASF SE
- PCNHCP metal complexes and uses thereof14 Oct 2025US 12,441,669 B2Technion Research & Development Foundation Limited
- Method for preparing organic carboxylic ester by using combined catalyst of aryl bidentate phosphine ligand26 Aug 2025US 12,398,089 B2Lanzhou Institute of Chemical Physics, CAS
- Process for making a conjugated diene from an allyl alcohol1 Jul 2025US 12,344,569 B2Givaudan SA
- Eggshell type catalyst, and preparation method and application thereof in propylene hydroformylation reaction28 Aug 2025US 2025/0269362 A1Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Palladium precatalyst embodiments for enantioselective chemical reactions and methods of making and using the same15 May 2025US 2025/0153157 A1
- Selective Transition Metal Catalyzed Deuterium Incorporation Into Alkyne and Alkene Functionalities17 Apr 2025US 2025/0122133 A1Marquette University
- Process for unprotected asymmetric preparation of nicotine13 Mar 2025US 2025/0084057 A1Shenzhen Catalys Technology Co., Ltd
- Cationic cobalt complexes for asymmetric hydrogenation and methods of making the same28 Nov 2024US 2024/0390882 A1
Most cited
By later US patents
- Ruthenium-phosphine complex53US 4,691,037 ATakasago Perfumery Co., Ltd. · 1987
- Low pressure rhodium catalyzed hydroformylation of olefins53US 4,960,949 AEastman Kodak Company · 1990
- Sulfonated 2,2'-bis (diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds51US 5,347,045 AHoechst Aktiengesellschaft · 1994
- Separation processes34US 5,932,772 AUnion Carbide Chemicals & Plastics Technology Corporation · 1999
- Hydroformylation32US 7,049,473 B2BASF SE · 2006