B01J 31/2457
Comprising aliphatic or saturated rings
Official title: {comprising aliphatic or saturated rings, e.g. Xantphos}
B01J31/2457 (Comprising aliphatic or saturated rings) appears on 95 US grants and 84 published applications in this corpus.
Search patents in B01J- Granted patents
- 95
- Published applications
- 84
- Assignees
- 61
- Inventors
- 246
- 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 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 1 | 3 |
| 2003 | 3 | 5 |
| 2004 | 4 | 4 |
| 2005 | 4 | 2 |
| 2006 | 1 | 5 |
| 2007 | 4 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 3 | 2 |
| 2014 | 2 | 1 |
| 2015 | 2 | 3 |
| 2016 | 4 | 6 |
| 2017 | 3 | 3 |
| 2018 | 1 | 6 |
| 2019 | 5 | 4 |
| 2020 | 3 | 4 |
| 2021 | 4 | 5 |
| 2022 | 4 | 3 |
| 2023 | 3 | 8 |
| 2024 | 2 | 5 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
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
- Process for making a conjugated diene from an allyl alcohol1 Jul 2025US 12,344,569 B2Givaudan SA
- Chromium complex and catalyst therefrom13 Feb 2024US 11,896,965 B2Dow Global Technologies LLC
- Method for producing a spirooxindole derivative30 Jan 2024US 11,884,678 B2Daiichi Sankyo Company, Limited
- Process for hydroformylation of olefins using Pt and iodine3 Oct 2023US 11,773,042 B2Evonik Operations GmbH
- 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 preparing an acetal from an olefin using an iodine-alkyl compound21 Nov 2024US 2024/0383833 A1Evonik Oxeno GmbH
- Palladium complex and catalyst embodiments and methods of making and using the same3 Oct 2024US 2024/0326030 A1UVic Industry Partnerships Inc.
- Preparation method of l-nicotine25 Jul 2024US 2024/0246929 A1Huanggang Zy Biotechnology Co., Ltd.
Most cited
By later US patents
- Separation processes34US 5,932,772 AUnion Carbide Chemicals & Plastics Technology Corporation · 1999
- Asymmetric diphosphines, their preparation and their use24US 3,949,000 ARhone-Poulenc Inc. · 1976
- Ruthenium catalysts and their use in the asymmetric hydrogenation of cyclopentenones23US 5,874,600 AFirmenich SA · 1999
- 2,2'-bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1 ,1'-binaphthyl and transition metal complex containing the same as ligand19US 5,206,399 ATakasago International Corporation · 1993
- Chiral diphosphine compound intermediate for preparing the same transition metal complex having the same diphosphine compound as ligand and asymmetric hydrogenation catalyst18US 5,872,273 ATakasago International Corporation · 1999