B01J 31/2204
The ligands containing oxygen or sulfur as complexing atoms
Official title: {the ligands containing oxygen or sulfur as complexing atoms}
B01J31/2204 (The ligands containing oxygen or sulfur as complexing atoms) appears on 1,837 US grants and 1,704 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,837
- Published applications
- 1,704
- Assignees
- 879
- Inventors
- 4,704
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 14 | 0 |
| 1978 | 16 | 0 |
| 1979 | 13 | 0 |
| 1980 | 22 | 0 |
| 1981 | 24 | 0 |
| 1982 | 24 | 0 |
| 1983 | 22 | 0 |
| 1984 | 17 | 0 |
| 1985 | 17 | 0 |
| 1986 | 13 | 0 |
| 1987 | 18 | 0 |
| 1988 | 11 | 0 |
| 1989 | 19 | 0 |
| 1990 | 16 | 0 |
| 1991 | 19 | 0 |
| 1992 | 26 | 0 |
| 1993 | 20 | 0 |
| 1994 | 22 | 0 |
| 1995 | 13 | 0 |
| 1996 | 23 | 0 |
| 1997 | 22 | 0 |
| 1998 | 29 | 0 |
| 1999 | 22 | 0 |
| 2000 | 34 | 0 |
| 2001 | 41 | 10 |
| 2002 | 45 | 38 |
| 2003 | 52 | 60 |
| 2004 | 40 | 46 |
| 2005 | 39 | 68 |
| 2006 | 40 | 43 |
| 2007 | 36 | 38 |
| 2008 | 24 | 39 |
| 2009 | 22 | 58 |
| 2010 | 42 | 58 |
| 2011 | 33 | 64 |
| 2012 | 41 | 42 |
| 2013 | 40 | 68 |
| 2014 | 46 | 64 |
| 2015 | 61 | 73 |
| 2016 | 68 | 83 |
| 2017 | 78 | 78 |
| 2018 | 58 | 79 |
| 2019 | 79 | 103 |
| 2020 | 73 | 86 |
| 2021 | 73 | 115 |
| 2022 | 74 | 101 |
| 2023 | 76 | 83 |
| 2024 | 87 | 88 |
| 2025 | 43 | 77 |
| 2026 | 22 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for carrying out reaction of isatin compound and cyclopropenone compound at low catalytic amount22 Sep 2026US 12,741,972 B2Soochow University
- Preparation method for pyrimidine-2-amine8 Sep 2026US 12,729,185 B2Institute for Basic Science
- 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
- Method for preparing arylvinylsulphones28 Jul 2026US 12,692,224 B2Kemira Oyj
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Manganese polymers and catalysts for plastic articles24 Sep 2026US 2026/0286097 A1Plastipak Packaging, Inc.
- Encapsulated catalyst, method of preparation, composition and methods involving hydrosilylation17 Sep 2026US 2026/0273516 A1Dow Silicones Corporation
- Catalysts for room temperature vulcanisable (rtv) silicone compositions17 Sep 2026US 2026/0273517 A1
- Process for preparing solketal acrylate by transesterification17 Sep 2026US 2026/0274813 A1BASF SE
Most cited
By later US patents
- Silica-coated alumina activator-supports for metallocene catalyst compositions292US 7,884,163 B2Chevron Phillips Chemical Company LP · 2011
- Highly active double metal cyanide catalysts250US 5,482,908 AARCO Chemical Technology, L. P. · 1996
- Polymerization of .alpha.-olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety209US 5,637,660 ALyondell Petrochemical Company · 1997
- Metal nanocrystals and synthesis thereof117US 6,645,444 B2Nanospin Solutions · 2003
- Method of preparing ruthenium and osmium carbene complexes104US 5,710,298 ACalifornia Institute of Technology · 1998