B01J 2531/02
Compositional aspects of complexes used
Official title: Compositional aspects of complexes used, e.g. polynuclearity
B01J2531/02 (Compositional aspects of complexes used) appears on 1,753 US grants and 1,538 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,753
- Published applications
- 1,538
- Assignees
- 811
- Inventors
- 4,275
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 11 | 0 |
| 1978 | 18 | 0 |
| 1979 | 14 | 0 |
| 1980 | 19 | 0 |
| 1981 | 32 | 0 |
| 1982 | 28 | 0 |
| 1983 | 14 | 0 |
| 1984 | 16 | 0 |
| 1985 | 14 | 0 |
| 1986 | 12 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 14 | 0 |
| 1990 | 22 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 35 | 0 |
| 1994 | 27 | 0 |
| 1995 | 21 | 0 |
| 1996 | 39 | 0 |
| 1997 | 36 | 0 |
| 1998 | 43 | 0 |
| 1999 | 42 | 0 |
| 2000 | 33 | 0 |
| 2001 | 43 | 13 |
| 2002 | 34 | 25 |
| 2003 | 32 | 45 |
| 2004 | 32 | 55 |
| 2005 | 34 | 53 |
| 2006 | 34 | 44 |
| 2007 | 34 | 40 |
| 2008 | 28 | 42 |
| 2009 | 26 | 47 |
| 2010 | 38 | 65 |
| 2011 | 30 | 55 |
| 2012 | 44 | 52 |
| 2013 | 38 | 65 |
| 2014 | 47 | 68 |
| 2015 | 69 | 66 |
| 2016 | 62 | 58 |
| 2017 | 60 | 64 |
| 2018 | 41 | 58 |
| 2019 | 62 | 103 |
| 2020 | 66 | 81 |
| 2021 | 75 | 92 |
| 2022 | 61 | 93 |
| 2023 | 59 | 76 |
| 2024 | 63 | 76 |
| 2025 | 51 | 67 |
| 2026 | 30 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01J 2531/0238Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bondsIndexing code804
- B01J 2531/0202PolynuclearityIndexing code393
- B01J 2531/0261Complexes comprising ligands with non-tetrahedral chiralityIndexing code342
- B01J 2531/0213Complexes without c-metal linkagesIndexing code299
- B01J 2531/0286Complexes comprising ligands or other components characterized by their functionIndexing code138
- B01J 2531/0269Complexes comprising ligands derived from the natural chiral pool or otherwise havingIndexing code45
- B01J 2531/0225Complexes comprising pentahapto-cyclopentadienyl analoguesIndexing code35
Recent patents
- Method for carrying out reaction of isatin compound and cyclopropenone compound at low catalytic amount22 Sep 2026US 12,741,972 B2Soochow University
- Ferrocene-based unsymmetrical ligands bearing bulky di(adamantyl)phosphino motif and their metal catalysts8 Sep 2026US 12,729,216 B2Sigma-Aldrich Co.
- 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
- Oxidized polyethylene compounds and methods of making the same18 Aug 2026US 12,709,680 B2The Regents of the University of California
- Synthesis of atomically dispersed M—N—C catalysts via selective metalation11 Aug 2026US 12,702,970 B2Wisconsin Alumni Research Foundation
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Processes for preparing c-4 sugars and ketose sugars24 Sep 2026US 2026/0285894 A1
- Solid titanium catalyst component, catalyst for polymerizing olefin, and method for polymerizing olefin24 Sep 2026US 2026/0286018 A1Mitsui Chemicals, Inc.
- Encapsulated catalyst, method of preparation, composition and methods involving hydrosilylation17 Sep 2026US 2026/0273516 A1Dow Silicones Corporation
- Process for preparing, by hydroformylation, short-chain olefins in the gas phase20 Aug 2026US 2026/0242321 A1Evonik Oxeno GmbH
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
- 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