B01J 31/12
Containing organo-metallic compounds or metal hydrides
Official title: containing organo-metallic compounds or metal hydrides
B01J31/12 (Containing organo-metallic compounds or metal hydrides) appears on 1,691 US grants and 1,301 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,691
- Published applications
- 1,301
- Assignees
- 640
- Inventors
- 3,638
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 17 | 0 |
| 1978 | 29 | 0 |
| 1979 | 17 | 0 |
| 1980 | 15 | 0 |
| 1981 | 19 | 0 |
| 1982 | 6 | 0 |
| 1983 | 13 | 0 |
| 1984 | 11 | 0 |
| 1985 | 14 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 15 | 0 |
| 1992 | 21 | 0 |
| 1993 | 18 | 0 |
| 1994 | 29 | 0 |
| 1995 | 32 | 0 |
| 1996 | 44 | 0 |
| 1997 | 35 | 0 |
| 1998 | 47 | 0 |
| 1999 | 42 | 0 |
| 2000 | 53 | 0 |
| 2001 | 78 | 17 |
| 2002 | 79 | 38 |
| 2003 | 35 | 41 |
| 2004 | 34 | 44 |
| 2005 | 33 | 64 |
| 2006 | 36 | 32 |
| 2007 | 38 | 44 |
| 2008 | 23 | 38 |
| 2009 | 21 | 38 |
| 2010 | 34 | 54 |
| 2011 | 32 | 48 |
| 2012 | 26 | 40 |
| 2013 | 41 | 45 |
| 2014 | 30 | 42 |
| 2015 | 33 | 59 |
| 2016 | 59 | 75 |
| 2017 | 56 | 69 |
| 2018 | 53 | 70 |
| 2019 | 66 | 75 |
| 2020 | 69 | 78 |
| 2021 | 64 | 66 |
| 2022 | 58 | 60 |
| 2023 | 44 | 54 |
| 2024 | 39 | 43 |
| 2025 | 34 | 48 |
| 2026 | 27 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for the production of stable polyoxymethylene copolymers (cPOM)22 Sep 2026US 12,742,033 B2BASF SE
- Dual catalyst system for mass vinyl addition and cationic polymerizable compositions22 Sep 2026US 12,742,041 B2Promerus, LLC
- Catalytic hydrogenolysis of a polymer25 Aug 2026US 12,715,826 B2Northwestern University
- Method for preparing ester-based composition11 Aug 2026US 12,703,675 B2LG Chem.Ltd.
- 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.
- Encapsulated catalyst, method of preparation, composition and methods involving hydrosilylation17 Sep 2026US 2026/0273516 A1Dow Silicones Corporation
- Bulky and small-steric-hindrance ligand and use thereof17 Sep 2026US 2026/0273518 A1Dg Hc Optical Co., Ltd
- Ligand Compound, Organic Chromium Compound, and Catalyst Compositions Containing the Same3 Sep 2026US 2026/0257213 A1LG Chem.Ltd.
- 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
Most cited
By later US patents
- Catalyst system of enhanced productivity544US 5,153,157 AExxon Chemical Patents Inc. · 1992
- Compositions that can produce polymers334US 6,300,271 B1Phillips Petroleum Company · 2001
- Organometal catalyst compositions329US 6,355,594 B1Phillips Petroleum Company · 2002
- Organometal catalyst compositions300US 6,376,415 B1Phillips Petroleum Company · 2002
- Silica-coated alumina activator-supports for metallocene catalyst compositions292US 7,884,163 B2Chevron Phillips Chemical Company LP · 2011