B01J 2531/90
Catalytic systems characterized by the solvent or solvent system used
B01J2531/90 (Catalytic systems characterized by the solvent or solvent system used) appears on 308 US grants and 183 published applications in this corpus.
Search patents in B01J- Granted patents
- 308
- Published applications
- 183
- Assignees
- 209
- Inventors
- 730
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 15 | 0 |
| 1997 | 12 | 0 |
| 1998 | 31 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 1 |
| 2002 | 9 | 8 |
| 2003 | 12 | 13 |
| 2004 | 8 | 8 |
| 2005 | 6 | 12 |
| 2006 | 5 | 4 |
| 2007 | 1 | 5 |
| 2008 | 4 | 3 |
| 2009 | 1 | 8 |
| 2010 | 7 | 7 |
| 2011 | 2 | 8 |
| 2012 | 5 | 10 |
| 2013 | 8 | 13 |
| 2014 | 9 | 2 |
| 2015 | 7 | 8 |
| 2016 | 5 | 13 |
| 2017 | 10 | 5 |
| 2018 | 5 | 2 |
| 2019 | 6 | 11 |
| 2020 | 6 | 4 |
| 2021 | 5 | 6 |
| 2022 | 4 | 9 |
| 2023 | 8 | 7 |
| 2024 | 8 | 6 |
| 2025 | 2 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Formate production method, formic acid production method, and antifreezing agent production method21 Apr 2026US 12,606,513 B2Nitto Denko Corporation
- System and method for hydrogen production by dehydrogenation of formic acid16 Dec 2025US 12,497,292 B2Dens B.V.
- Robust bijels for interfacial catalysis and interphase separations19 Aug 2025US 12,390,782 B2The Trustees of the University of Pennsylvania
- Method for oxidation of sulfur-containing compounds5 Nov 2024US 12,134,593 B2WiSys Technology Foundation, Inc.
- Mono-substituted cyclopentadienes and metal cyclopentadienyl complexes and synthesis methods thereof17 Sep 2024US 12,091,374 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process for the preparation of tucatinib3 Sep 2026US 2026/0258034 A1Dr. Reddy's Laboratories, Inc.
- Carbon nanotube-porphyrin photocatalysts16 Jul 2026US 2026/0199888 A1
- Photocatalytic Liquid and Method for Manufacturing the Same16 Apr 2026US 2026/0102763 A1Hao Wei Environmental Technology Co., Ltd.
- System and method for hydrogen production by dehydrogenation of formic acid5 Mar 2026US 2026/0062287 A1Dens B.V.
- Process for producing a single site catalyst24 Jul 2025US 2025/0235859 A1W. R. Grace & Co.-Conn.
Most cited
By later US patents
- Texaphyrin-oligonucleotide conjugates308US 5,587,371 ABoard of Trustees, Univ. of TX Sys. · 1996
- Copper-catalysed ligation of azides and acetylenes267US 7,375,234 B2The Scripps Research Institute · 2008
- Highly active double metal cyanide catalysts250US 5,482,908 AARCO Chemical Technology, L. P. · 1996
- Phase transfer catalyzed preparation of aromatic polyether polymers113US 5,229,482 AGeneral Electric Company · 1993
- Polyether-containing double metal cyanide catalysts103US 5,545,601 AARCO Chemical Technology, L. P. · 1996