B01J 2531/00
Additional information regarding catalytic systems classified in b01j31/00
Official title: Additional information regarding catalytic systems classified in B01J31/00
B01J2531/00 (Additional information regarding catalytic systems classified in b01j31/00) appears on 6,277 US grants and 5,175 published applications in this corpus.
Search patents in B01J- Granted patents
- 6,277
- Published applications
- 5,175
- Assignees
- 1,928
- Inventors
- 12,748
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 111 | 0 |
| 1977 | 59 | 0 |
| 1978 | 80 | 0 |
| 1979 | 64 | 0 |
| 1980 | 85 | 0 |
| 1981 | 114 | 0 |
| 1982 | 90 | 0 |
| 1983 | 76 | 0 |
| 1984 | 69 | 0 |
| 1985 | 70 | 0 |
| 1986 | 52 | 0 |
| 1987 | 54 | 0 |
| 1988 | 34 | 0 |
| 1989 | 75 | 0 |
| 1990 | 65 | 0 |
| 1991 | 64 | 0 |
| 1992 | 89 | 0 |
| 1993 | 96 | 0 |
| 1994 | 80 | 0 |
| 1995 | 80 | 0 |
| 1996 | 97 | 0 |
| 1997 | 101 | 0 |
| 1998 | 156 | 0 |
| 1999 | 124 | 0 |
| 2000 | 145 | 0 |
| 2001 | 159 | 38 |
| 2002 | 159 | 118 |
| 2003 | 141 | 165 |
| 2004 | 125 | 176 |
| 2005 | 120 | 191 |
| 2006 | 120 | 144 |
| 2007 | 114 | 142 |
| 2008 | 82 | 142 |
| 2009 | 92 | 164 |
| 2010 | 134 | 209 |
| 2011 | 107 | 189 |
| 2012 | 123 | 178 |
| 2013 | 153 | 196 |
| 2014 | 154 | 198 |
| 2015 | 197 | 286 |
| 2016 | 226 | 296 |
| 2017 | 268 | 266 |
| 2018 | 209 | 227 |
| 2019 | 230 | 304 |
| 2020 | 240 | 274 |
| 2021 | 220 | 284 |
| 2022 | 196 | 262 |
| 2023 | 181 | 218 |
| 2024 | 191 | 216 |
| 2025 | 116 | 179 |
| 2026 | 90 | 113 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01J 2531/80Complexes comprising metals of group viii as the central metalIndexing code4,128
- B01J 2531/02Compositional aspects of complexes usedIndexing code1,753
- B01J 2531/40Complexes comprising metals of group iv as the central metalIndexing code1,016
- B01J 2531/60Complexes comprising metals of group vi as the central metalIndexing code845
- B01J 2531/10Complexes comprising metals of group i as the central metalIndexing code608
- B01J 2531/70Complexes comprising metals of group vii as the central metalIndexing code411
- B01J 2531/30Complexes comprising metals of group iii as the central metalIndexing code400
- B01J 2531/20Complexes comprising metals of group ii as the central metalIndexing code392
Recent patents
- Immobolized organometallic catalyst and application of same6 Oct 2026US 12,752,265 B2Saudi Arabian Oil Company
- Catalytic method for the preparation of perfluoroalkoxy-substituted arenes and heteroarenes6 Oct 2026US 12,753,139 B2Freie UniversitäT Berlin
- Preparation of organosilicon compounds with carbinol functionality6 Oct 2026US 12,753,193 B2Dow Global Technologies LLC
- Internal diene compounds and their Pt complexes for catalyzed reactions including hydrosilylation29 Sep 2026US 12,746,537 B2
- Acousticmicrofluidic driven one-step template-free engineering of porous multidimensional multimetallic nanoarchitectures with tunable size, shape, and composition22 Sep 2026US 12,741,277 B2Qatar University
- 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
- Ethylene oxide abatement systems1 Oct 2026US 2026/0295522 A1Boston Scientific Scimed, Inc.
- Ethylene oxide abatement systems1 Oct 2026US 2026/0295523 A1Boston Scientific Scimed, Inc.
Most cited
By later US patents
- Catalyst system of enhanced productivity544US 5,153,157 AExxon Chemical Patents Inc. · 1992
- 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
- Compositions that can produce polymers334US 6,300,271 B1Phillips Petroleum Company · 2001
- Organometal catalyst compositions329US 6,355,594 B1Phillips Petroleum Company · 2002