B01J 31/18
Containing nitrogen, phosphorus, arsenic or antimony as complexing atoms
Official title: containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)}
B01J31/18 (Containing nitrogen, phosphorus, arsenic or antimony as complexing atoms) appears on 2,935 US grants and 2,302 published applications in this corpus.
Search patents in B01J- Granted patents
- 2,935
- Published applications
- 2,302
- Assignees
- 1,029
- Inventors
- 6,028
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 54 | 0 |
| 1977 | 30 | 0 |
| 1978 | 53 | 0 |
| 1979 | 34 | 0 |
| 1980 | 43 | 0 |
| 1981 | 67 | 0 |
| 1982 | 49 | 0 |
| 1983 | 38 | 0 |
| 1984 | 31 | 0 |
| 1985 | 40 | 0 |
| 1986 | 25 | 0 |
| 1987 | 28 | 0 |
| 1988 | 23 | 0 |
| 1989 | 45 | 0 |
| 1990 | 37 | 0 |
| 1991 | 30 | 0 |
| 1992 | 45 | 0 |
| 1993 | 35 | 0 |
| 1994 | 38 | 0 |
| 1995 | 41 | 0 |
| 1996 | 52 | 0 |
| 1997 | 40 | 0 |
| 1998 | 79 | 0 |
| 1999 | 60 | 0 |
| 2000 | 74 | 0 |
| 2001 | 72 | 24 |
| 2002 | 63 | 63 |
| 2003 | 67 | 84 |
| 2004 | 59 | 93 |
| 2005 | 62 | 91 |
| 2006 | 68 | 83 |
| 2007 | 55 | 67 |
| 2008 | 41 | 74 |
| 2009 | 51 | 75 |
| 2010 | 49 | 91 |
| 2011 | 58 | 103 |
| 2012 | 67 | 73 |
| 2013 | 67 | 79 |
| 2014 | 63 | 98 |
| 2015 | 94 | 123 |
| 2016 | 114 | 122 |
| 2017 | 102 | 103 |
| 2018 | 90 | 100 |
| 2019 | 108 | 115 |
| 2020 | 82 | 93 |
| 2021 | 96 | 100 |
| 2022 | 68 | 112 |
| 2023 | 71 | 113 |
| 2024 | 79 | 98 |
| 2025 | 57 | 83 |
| 2026 | 41 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Immobolized organometallic catalyst and application of same6 Oct 2026US 12,752,265 B2Saudi Arabian Oil Company
- Preparation of organosilicon compounds with carbinol functionality6 Oct 2026US 12,753,193 B2Dow Global Technologies LLC
- Method for carrying out reaction of isatin compound and cyclopropenone compound at low catalytic amount22 Sep 2026US 12,741,972 B2Soochow University
- Methods for preparing (2S,3R,4R)-4,5-dihydroxyisoleucine derivative and intermediates thereof15 Sep 2026US 12,735,384 B2Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Preparation of amino-functional organosilicon compounds15 Sep 2026US 12,735,440 B2Dow Global Technologies LLC
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Process for preparing 2,3-unsaturated alcohols8 Oct 2026US 2026/0308092 A1BASF SE
- Process for improving rhodium/phosphite-based homogenous hydroformylation catalyst activity8 Oct 2026US 2026/0308098 A1Dow Technology Investments LLC
- Preparation of amino-functional organosilicon compounds8 Oct 2026US 2026/0308182 A1Dow Global Technologies LLC
- Processes for preparing c-4 sugars and ketose sugars24 Sep 2026US 2026/0285894 A1
Most cited
By later US patents
- Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers410US 4,784,736 ABend Research, Inc. · 1988
- Functional, photochemically active, and chemically asymmetric membranes by interfacial polymerization of derivatized multifunctional prepolymers370US 4,917,800 ABend Research, Inc. · 1990
- Method of expanded porphyrin-oligonucleotide conjugate synthesis325US 5,565,552 ABoard of Regents, Univ. of Texas Sys. · 1996
- Texaphyrin-oligonucleotide conjugates308US 5,587,371 ABoard of Trustees, Univ. of TX Sys. · 1996
- Silica-coated alumina activator-supports for metallocene catalyst compositions292US 7,884,163 B2Chevron Phillips Chemical Company LP · 2011