B01J 31/4023
Containing iron group metals, noble metals or copper
Official title: {containing iron group metals, noble metals or copper}
B01J31/4023 (Containing iron group metals, noble metals or copper) appears on 374 US grants and 132 published applications in this corpus.
Search patents in B01J- Granted patents
- 374
- Published applications
- 132
- Assignees
- 177
- Inventors
- 799
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 12 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 13 | 0 |
| 1981 | 12 | 0 |
| 1982 | 13 | 0 |
| 1983 | 14 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 15 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 17 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 32 | 0 |
| 1999 | 13 | 0 |
| 2000 | 11 | 0 |
| 2001 | 8 | 2 |
| 2002 | 4 | 5 |
| 2003 | 6 | 13 |
| 2004 | 6 | 8 |
| 2005 | 6 | 9 |
| 2006 | 7 | 7 |
| 2007 | 5 | 6 |
| 2008 | 4 | 3 |
| 2009 | 3 | 6 |
| 2010 | 6 | 8 |
| 2011 | 6 | 1 |
| 2012 | 6 | 9 |
| 2013 | 3 | 2 |
| 2014 | 3 | 1 |
| 2015 | 3 | 3 |
| 2016 | 1 | 4 |
| 2017 | 3 | 3 |
| 2018 | 1 | 7 |
| 2019 | 7 | 8 |
| 2020 | 6 | 3 |
| 2021 | 5 | 2 |
| 2022 | 1 | 3 |
| 2023 | 3 | 8 |
| 2024 | 2 | 7 |
| 2025 | 4 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for preparing enantiomerically enriched substituted pyrrolo[2,3-d]pyrimidines2 Jun 2026US 12,643,902 B2Sun Pharmaceutical Industries Limited
- Iron removal from carbon nanotubes and metal catalyst recycle25 Nov 2025US 12,479,729 B2Nanocomp Technologies, Inc.
- Method for carbon dioxide fixation using a palladium-doped nitrogen-rich organic framework catalyst30 Sep 2025US 12,427,506 B1King Fahd University of Petroleum and Minerals
- Iron catalyzed highly enantioselective cis-dihydroxylation of quinones22 Apr 2025US 12,281,065 B2Laboratory for Synthetic Chemistry and Chemical Biology Limited
- Processes for recovery of rhodium from a hydroformylation process11 Mar 2025US 12,246,310 B2Dow Technology Investments LLC
- Method for recovering platinum group element3 Jul 2025US 2025/0215525 A1Zeon Corporation
- Processes for recovering rhodium from hydroformylation processes1 May 2025US 2025/0137091 A1Dow Technology Investments LLC
- Compounds, transition metal complex hydroformylation catalyst precuror compositions comprising such compounds, and hydroformylation processes24 Apr 2025US 2025/0128245 A1Dow Technology Investments LLC
- Covalent organic framework membranes, methods and uses thereof2 Jan 2025US 2025/0001368 A1National University of Singapore
- Transition metal complex hydroformylation catalyst precuror compositions comprising such compounds, and hydroformylation processes5 Dec 2024US 2024/0399349 A1Dow Technology Investments LLC
Most cited
By later US patents
- Method of recovering in active form the catalyst for the terephthalic acid synthesis117US 4,356,319 AMontedison S.p.A. · 1982
- Process for separating zero-valent nickel species from divalent nickel species97US 4,387,056 AE. I. Du Pont de Nemours and Company · 1983
- Recyclable metathesis catalysts82US 6,921,735 B2The Trustees of Boston College · 2005
- Process for improving productivity of a carbonylation catalyst solution by removing corrosion metals77US 5,731,252 AHoechst Celanese Corporation · 1998
- Transition metal complex catalyzed reactions67US 4,717,775 AUnion Carbide Corporation · 1988