B01J 31/2213
At least two complexing oxygen atoms present in an at least bidentate
Official title: {At least two complexing oxygen atoms present in an at least bidentate or bridging ligand}
B01J31/2213 (At least two complexing oxygen atoms present in an at least bidentate) appears on 124 US grants and 130 published applications in this corpus.
Search patents in B01J- Granted patents
- 124
- Published applications
- 130
- Assignees
- 115
- Inventors
- 429
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 5 | 4 |
| 2004 | 3 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 5 |
| 2010 | 2 | 3 |
| 2011 | 2 | 7 |
| 2012 | 3 | 4 |
| 2013 | 1 | 3 |
| 2014 | 4 | 6 |
| 2015 | 5 | 3 |
| 2016 | 6 | 8 |
| 2017 | 7 | 7 |
| 2018 | 2 | 6 |
| 2019 | 7 | 7 |
| 2020 | 5 | 9 |
| 2021 | 6 | 15 |
| 2022 | 10 | 11 |
| 2023 | 10 | 8 |
| 2024 | 9 | 2 |
| 2025 | 2 | 3 |
| 2026 | 0 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of arene alkenylation2 Sep 2025US 12,404,221 B2University of Virginia Patent Foundation
- Modified metal-organic framework and catalyst for hydrogenation reaction including same18 Feb 2025US 12,226,760 B2Korea Research Institute of Chemical Technology
- Cyclic supported catalysts19 Nov 2024US 12,145,949 B2Centre National De La Recherche Scientifique
- Synthesis and use of oxa-spirodiphosphine ligand27 Aug 2024US 12,071,444 B2Shenzhen Catalys Technology Co., Ltd
- Titanium catalyst and synthesizing polyester resins20 Aug 2024US 12,064,754 B2Chang Chun Petrochemical Co., Ltd.
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Catalysts for room temperature vulcanisable (rtv) silicone compositions17 Sep 2026US 2026/0273517 A1
- Regio-controllable [2+2] benzannulation with two adjacent c(sp3)-h bonds20 Aug 2026US 2026/0242341 A1The Scripps Research Institute
- Catalysts including boronic, metal hydroxide, or metal oxide active-site groups30 Jul 2026US 2026/0216715 A11s1 Energy, Inc.
- Process for preparing alpha,beta-unsaturated carbonyl compound16 Jul 2026US 2026/0200822 A1Firmenich SA
Most cited
By later US patents
- Highly active double metal cyanide catalysts250US 5,482,908 AARCO Chemical Technology, L. P. · 1996
- Highly active double metal cyanide catalysts73US 5,627,120 AARCO Chemical Technology, L. P. · 1997
- Highly active double metal cyanide catalysts and epoxide polymerization63US 5,536,883 AARCO Chemical Technology, L. P. · 1996
- Process of trimerizing and oligomerizing olefins using chromium compounds58US 5,523,507 APhillips Petroleum Company · 1996
- Chromium catalysts and process for making chromium catalysts54US 5,376,612 APhillips Petroleum Company · 1994