B01J 31/223
At least two oxygen atoms present in one at least bidentate or
Official title: {At least two oxygen atoms present in one at least bidentate or bridging ligand}
B01J31/223 (At least two oxygen atoms present in one at least bidentate or) appears on 747 US grants and 671 published applications in this corpus.
Search patents in B01J- Granted patents
- 747
- Published applications
- 671
- Assignees
- 456
- Inventors
- 2,200
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 11 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 15 | 0 |
| 1993 | 11 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 13 | 0 |
| 1997 | 11 | 0 |
| 1998 | 16 | 0 |
| 1999 | 10 | 0 |
| 2000 | 17 | 0 |
| 2001 | 17 | 7 |
| 2002 | 22 | 15 |
| 2003 | 19 | 17 |
| 2004 | 17 | 18 |
| 2005 | 16 | 22 |
| 2006 | 15 | 15 |
| 2007 | 14 | 21 |
| 2008 | 9 | 19 |
| 2009 | 6 | 28 |
| 2010 | 19 | 20 |
| 2011 | 12 | 18 |
| 2012 | 16 | 13 |
| 2013 | 20 | 22 |
| 2014 | 13 | 31 |
| 2015 | 18 | 21 |
| 2016 | 20 | 35 |
| 2017 | 33 | 28 |
| 2018 | 31 | 38 |
| 2019 | 41 | 43 |
| 2020 | 30 | 30 |
| 2021 | 24 | 47 |
| 2022 | 35 | 42 |
| 2023 | 21 | 36 |
| 2024 | 36 | 33 |
| 2025 | 12 | 36 |
| 2026 | 6 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Metal-organic framework (MOF) MIL-125 and preparation method and use thereof25 Aug 2026US 12,714,989 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Reduction by a silane in the presence of Zinc catalyst28 Jul 2026US 12,692,213 B2Firmenich SA
- Coordinated platinum hydrosilylation catalysts with COOH based ligands17 Feb 2026US 12,551,876 B2The Trustees of Indiana University
- Ionic solid27 Jan 2026US 12,534,489 B2Japan Science and Technology Agency
- Visible light-reactive photocatalyst for treating organic pollutants20 Jan 2026US 12,528,070 B2Kyungpook National Univesity Industry-Academic Cooperation Foundation
- Manganese polymers and catalysts for plastic articles24 Sep 2026US 2026/0286097 A1Plastipak Packaging, Inc.
- Process for preparing, by hydroformylation, short-chain olefins in the gas phase20 Aug 2026US 2026/0242321 A1Evonik Oxeno GmbH
- Process for preparing alpha,beta-unsaturated carbonyl compound16 Jul 2026US 2026/0200822 A1Firmenich SA
- Novel iron-based compounds, processes for the preparation thereof, and use thereof as catalysts16 Jul 2026US 2026/0200963 A1Centre National De La Recherche Scientifique
- Alkali-metal phenolic compounds and uses thereof18 Jun 2026US 2026/0167773 A1Universidad De Alcala
Most cited
By later US patents
- Polyether-containing double metal cyanide catalysts103US 5,545,601 AARCO Chemical Technology, L. P. · 1996
- Process for producing polyalkylene carbonates76US 6,617,467 B1BASF SE · 2003
- Process for the epoxidation of an organic compound with oxygen or an oxygen-delivering compounds using catalysts containing metal-organic frame-work materials73US 6,624,318 B1BASF SE · 2003
- Acid activation of ruthenium metathesis catalysts and living ROMP metathesis polymerization in water65US 6,284,852 B1California Institute of Technology · 2001
- Hydroconversion processes employing multi-metallic catalysts and method for making thereof60US 8,173,570 B2Chevron U.S.A.Inc. · 2012