B01J 2531/50
Complexes comprising metals of group v as the central metal
Official title: Complexes comprising metals of Group V (VA or VB) as the central metal
B01J2531/50 (Complexes comprising metals of group v as the central metal) appears on 348 US grants and 221 published applications in this corpus.
Search patents in B01J- Granted patents
- 348
- Published applications
- 221
- Assignees
- 224
- Inventors
- 854
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 10 | 0 |
| 1978 | 12 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 10 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 11 | 0 |
| 2000 | 18 | 0 |
| 2001 | 11 | 3 |
| 2002 | 14 | 6 |
| 2003 | 14 | 7 |
| 2004 | 5 | 9 |
| 2005 | 6 | 12 |
| 2006 | 9 | 13 |
| 2007 | 8 | 11 |
| 2008 | 4 | 4 |
| 2009 | 10 | 8 |
| 2010 | 5 | 12 |
| 2011 | 4 | 11 |
| 2012 | 3 | 8 |
| 2013 | 5 | 12 |
| 2014 | 5 | 27 |
| 2015 | 9 | 12 |
| 2016 | 14 | 7 |
| 2017 | 10 | 7 |
| 2018 | 6 | 5 |
| 2019 | 1 | 8 |
| 2020 | 7 | 12 |
| 2021 | 7 | 8 |
| 2022 | 6 | 7 |
| 2023 | 9 | 2 |
| 2024 | 5 | 5 |
| 2025 | 2 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalytic hydrogenolysis of a polymer25 Aug 2026US 12,715,826 B2Northwestern University
- 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
- Synthesis of novel vanadium alkylidyne complexes and their use in metathesis reactions13 Jan 2026US 12,522,622 B1The Florida International University Board of Trustees
- Urethane exchange catalysts and methods for reprocessing cross-linked polyurethane foams10 Jun 2025US 12,325,778 B2Cornell University
- Nanofiber electrocatalyst8 Apr 2025US 12,269,020 B2Uchicago Argonne, LLC
- A catalyst composition for improving time to reach high esterification conversion of carboxylic acids/anhydrides6 Aug 2026US 2026/0225089 A1Wisconsin Alumni Research Foundation
- Catalysts including boronic, metal hydroxide, or metal oxide active-site groups30 Jul 2026US 2026/0216715 A11s1 Energy, Inc.
- Arsenic-containing ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions15 Jan 2026US 2026/0014551 A1INV Nylon Chemicals Americas, LLC
- Catalytic hydrogenolysis of a polymer31 Jul 2025US 2025/0243134 A1Northwestern University
- Method for producing cyclic diketone compound3 Jul 2025US 2025/0214920 A1Kao Corporation
Most cited
By later US patents
- Polymerization of .alpha.-olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety209US 5,637,660 ALyondell Petrochemical Company · 1997
- Metallocenes and processes therefor and therewith148US 5,399,636 APhillips Petroleum Company · 1995
- Metallocenes containing aryl-substituted indenyl derivatives as ligands, process for their preparation, and their use as catalysts137US 5,770,753 ATargor GmbH · 1998
- Metallocenes containing aryl-substituted indenyl derivatives as ligands, process for their preparation, and their use as catalysts123US 5,840,644 ATargor GmbH · 1998
- Vinly-substituted bridged metallocenes111US 5,565,592 APhillips Petroleum Company · 1996