B01J 31/122
Metal aryl or alkyl compounds
Official title: {Metal aryl or alkyl compounds}
B01J31/122 (Metal aryl or alkyl compounds) appears on 331 US grants and 242 published applications in this corpus.
Search patents in B01J- Granted patents
- 331
- Published applications
- 242
- Assignees
- 236
- Inventors
- 969
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 12 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 14 | 0 |
| 2000 | 9 | 0 |
| 2001 | 22 | 1 |
| 2002 | 16 | 9 |
| 2003 | 6 | 10 |
| 2004 | 6 | 10 |
| 2005 | 7 | 13 |
| 2006 | 9 | 9 |
| 2007 | 4 | 13 |
| 2008 | 7 | 4 |
| 2009 | 3 | 4 |
| 2010 | 7 | 10 |
| 2011 | 3 | 6 |
| 2012 | 3 | 5 |
| 2013 | 5 | 7 |
| 2014 | 5 | 6 |
| 2015 | 5 | 10 |
| 2016 | 11 | 6 |
| 2017 | 5 | 8 |
| 2018 | 5 | 14 |
| 2019 | 7 | 10 |
| 2020 | 12 | 15 |
| 2021 | 7 | 14 |
| 2022 | 11 | 11 |
| 2023 | 11 | 11 |
| 2024 | 9 | 14 |
| 2025 | 6 | 17 |
| 2026 | 9 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalytic hydrogenolysis of a polymer25 Aug 2026US 12,715,826 B2Northwestern University
- Method for preparing aliphatic polyketone by continuous solution polymerization process and aliphatic polyketone21 Jul 2026US 12,686,744 B2Chambroad Chemical Industry Research Institute Co., Ltd.
- Chiral bimetallic cooperative catalysis system containing chelating ligand and use thereof in asymmetric synthesis of bedaquiline16 Jun 2026US 12,654,154 B2Shanghai Jiao Tong University
- Carbamate production method, carbamate ester production method, and urea derivative production method12 May 2026US 12,623,999 B2National Institute of Advanced Industrial Science and Technology
- Process for the preparation of a multimodal polyethylene7 Apr 2026US 12,595,325 B2Borealis AG
- Improved method for dehydrogenating hydrocarbons20 Aug 2026US 2026/0242310 A1Arkema France
- Ethylene oligomerization method with reduced polymer generation and improved productivity6 Aug 2026US 2026/0225976 A1
- Catalysts for Olefin Metathesis, Methods of Preparation, and Processes for the Use Thereof11 Jun 2026US 2026/0158480 A1
- Catalyst composition for olefin oligomerization5 Mar 2026US 2026/0061408 A1Industrial Technology Research Institute
- Continuous flow synthesis of lorazepam5 Mar 2026US 2026/0062390 A1Continuity Pharma, LLC
Most cited
By later US patents
- Transition metal olefin polymerization catalysts97US 5,504,049 AExxon Chemical Patents Inc. · 1996
- Olefin production93US 5,856,257 APhillips Petroleum Company · 1999
- Olefin production process69US 7,157,612 B2Phillips Petroleum Company · 2007
- Doubly-conformationally locked, stereorigid catalysts for the preparation of tactiospecific polymers64US 5,459,117 A1995
- Process for oligomerizing C.sub.3 and higher olefins using zirconium adducts as catalysts (CS-467)53US 5,449,850 AExxon Chemical Patents Inc. · 1995