B01J 2531/13
Potassium
B01J2531/13 (Potassium) appears on 20 US grants and 21 published applications in this corpus.
Search patents in B01J- Granted patents
- 20
- Published applications
- 21
- Assignees
- 22
- Inventors
- 66
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 3 | 5 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Nickel catalysts with single alkali ions for homopolymerization and copolymerization23 Dec 2025US 12,503,526 B2University of Houston System
- 2,2-dimethyl-1,3-dioxolan-4-yl-methyl 2-bromo-2,2-difluoroacetate, waterborne polyurethane, and preparation methods thereof4 Mar 2025US 12,240,938 B2Hangzhou Normal University
- Nickel catalysts with single alkali ions for homopolymerization and copolymerization30 Jul 2024US 12,049,532 B2University of Houston System
- Nickel catalysts with two alkali ions for homopolymerization and copolymerization23 Jul 2024US 12,043,688 B2University of Houston System
- Nickel catalysts with single metal cations for homopolymerization and copolymerization23 Jul 2024US 12,043,689 B2University of Houston System
- Rare earth and group 4 catalysts for ambient conversion of dinitrogen to secondary silylamines21 Aug 2025US 2025/0262613 A1The Regents of the University of California
- Shell catalyst for producing alkenyl carboxylic acid esters having an improved pd and au distribution13 Feb 2025US 2025/0050314 A1Clariant International Ltd.
- Nickel catalysts with single alkali ions for homopolymerization and copolymerization5 Dec 2024US 2024/0400726 A1University of Houston System
- Nickel catalysts with two metal cations for homopolymerization and copolymerization23 May 2024US 2024/0166775 A1University of Houston System
- Nickel catalysts with single metal cations for homopolymerization and copolymerization11 Apr 2024US 2024/0117076 A1University of Houston System
Most cited
By later US patents
- Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis9US 5,498,583 AARCO Chemical Technology, L. P. · 1996
- Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis8US 5,426,081 AARCO Chemical Technology, L. P. · 1995
- Catalyst and method for its preparation7US 9,409,161 B2Johnson Matthey PLC · 2016
- Catalyst compositions and methods for making foam6US 10,125,234 B2Evonik Degussa GmbH · 2018
- Polyester polycondensation with titanyl oxalate catalyst and a catalyst enhancer6US 6,258,925 B1Atofina Chemicals, Inc. · 2001