B01J 31/2471
With more than one complexing phosphine-p atom
Official title: {with more than one complexing phosphine-P atom}
B01J31/2471 (With more than one complexing phosphine-p atom) appears on 79 US grants and 65 published applications in this corpus.
Search patents in B01J- Granted patents
- 79
- Published applications
- 65
- Assignees
- 48
- Inventors
- 176
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 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 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 6 |
| 2003 | 7 | 8 |
| 2004 | 7 | 7 |
| 2005 | 2 | 5 |
| 2006 | 4 | 3 |
| 2007 | 4 | 4 |
| 2008 | 5 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 1 | 3 |
| 2018 | 2 | 4 |
| 2019 | 4 | 1 |
| 2020 | 3 | 4 |
| 2021 | 2 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 2 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for preparing chiral 4-aryl-β-amino acid derivative27 Jan 2026US 12,534,427 B2Zhejiang Medicine Co., Ltd.Xinchang Pharmaceutical Factory
- 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 oligomerization11 Apr 2023US 11,623,209 B2Dow Global Technologies LLC
- Chromium complex and catalyst therefrom8 Nov 2022US 11,491,474 B2Dow Global Technologies LLC
- Ammonia synthesis catalyst, ammonia production device, and ammonia production method6 Aug 2026US 2026/0225088 A1Idemitsu Kosan Co., Ltd.
- Catalyst system and method for carbonylation reaction23 Jul 2026US 2026/0208174 A1Shandong Nhu Fine Chemical Science and Technology Company Ltd.
- Preparation method of l-nicotine25 Jul 2024US 2024/0246929 A1Huanggang Zy Biotechnology Co., Ltd.
- Method for preparing chiral 4-aryl-ß-amino acid derivative8 Jun 2023US 2023/0174461 A1Zhejiang Changhai Pharmaceutical Co., Ltd.
- Chromium complex and catalyst therefrom13 Apr 2023US 2023/0112954 A1Dow Global Technologies LLC
Most cited
By later US patents
- Ferrocenyl diphosphines as ligands for homogeneous catalysts30US 5,371,256 ACiba-Geigy Corporation · 1994
- Ferrocene diphosphines as ligands for homogeneous catalysts21US 5,563,308 ACiba-Geigy Corporation · 1996
- Silylated ferrocenyldiphosphines, silylated ferrocenyldiphosphines bound to inorganic or polymeric organic supports and also metal complexes thereof, their preparation and uses21US 5,783,715 ANovartis AG · 1998
- Functionalized ferrocenyldiphosphines, a process for their preparation and their use19US 6,169,192 ANovartis AG · 2001
- Ferrocene diphosphines as ligands for homogeneous catalysts18US 5,466,844 ACiba-Geigy Corporation · 1995