B01J 31/2217
At least one oxygen and one nitrogen atom present as complexing atoms
Official title: {At least one oxygen and one nitrogen atom present as complexing atoms in an at least bidentate or bridging ligand}
B01J31/2217 (At least one oxygen and one nitrogen atom present as complexing atoms) appears on 87 US grants and 114 published applications in this corpus.
Search patents in B01J- Granted patents
- 87
- Published applications
- 114
- Assignees
- 92
- Inventors
- 325
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 5 |
| 2012 | 3 | 3 |
| 2013 | 2 | 4 |
| 2014 | 7 | 11 |
| 2015 | 8 | 7 |
| 2016 | 6 | 3 |
| 2017 | 5 | 8 |
| 2018 | 1 | 1 |
| 2019 | 5 | 8 |
| 2020 | 3 | 10 |
| 2021 | 5 | 14 |
| 2022 | 9 | 12 |
| 2023 | 10 | 10 |
| 2024 | 8 | 3 |
| 2025 | 3 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method for producing fluorine-containing olefin31 Mar 2026US 12,590,047 B2AGC Inc.
- Catalysts for synthesizing cyclic carbonates, preparation methods and uses thereof23 Dec 2025US 12,502,661 B2Anhui Conch Material Technology Co., Ltd.
- Energy-efficient solvent-free method for producing metal chelates26 Aug 2025US 12,398,157 B2Technische Universitat Clausthal
- Method for preparing chiral alkyl compounds by asymmetric hydrogenation of olefins catalyzed by iron complex11 Feb 2025US 12,221,409 B2Zhejiang University
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Catalysts and processes for stereoselective ring-opening polymerization23 Apr 2026US 2026/0108869 A1Technische Universität München
- Catalysts for synthesizing cyclic carbonates, preparation methods and uses thereof20 Nov 2025US 2025/0352989 A1Anhui Conch Material Technology Co., Ltd.
- In-situ proton filter catalysts for electrochemical ammonia production12 Jun 2025US 2025/0186980 A1Khalifa University of Science and Technology
- Metal-containing peptoid membranes for hydrolysis of organophosphates27 Mar 2025US 2025/0099947 A1
Most cited
By later US patents
- Catalytic carbonylation catalysts and methods55US 9,327,280 B2Novomer, Inc. · 2016
- Bulk group VIII/group VIB metal catalysts and method of preparing same41US 7,951,746 B2ExxonMobil Research and Engineering Company · 2011
- Catalytic carbonylation catalysts and methods36US 10,221,278 B2Novomer, Inc. · 2019
- Transfer hydrogenation process and catalyst26US 7,250,526 B2NPIL Pharmaceuticals (UK) Limited · 2007
- Use of metal complex compounds as oxidation catalysts14US 7,928,049 B2BASF SE Ludwigshafen · 2011