B01J 23/90
Regeneration or reactivation
B01J23/90 (Regeneration or reactivation) appears on 1,095 US grants and 886 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,095
- Published applications
- 886
- Assignees
- 559
- Inventors
- 2,924
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 36 | 0 |
| 1977 | 27 | 0 |
| 1978 | 22 | 0 |
| 1979 | 18 | 0 |
| 1980 | 21 | 0 |
| 1981 | 19 | 0 |
| 1982 | 26 | 0 |
| 1983 | 28 | 0 |
| 1984 | 28 | 0 |
| 1985 | 22 | 0 |
| 1986 | 14 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 16 | 0 |
| 1990 | 8 | 0 |
| 1991 | 16 | 0 |
| 1992 | 13 | 0 |
| 1993 | 18 | 0 |
| 1994 | 14 | 0 |
| 1995 | 14 | 0 |
| 1996 | 11 | 0 |
| 1997 | 14 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 22 | 0 |
| 2001 | 14 | 6 |
| 2002 | 15 | 19 |
| 2003 | 18 | 27 |
| 2004 | 22 | 26 |
| 2005 | 18 | 21 |
| 2006 | 13 | 14 |
| 2007 | 15 | 23 |
| 2008 | 12 | 29 |
| 2009 | 17 | 37 |
| 2010 | 22 | 45 |
| 2011 | 18 | 43 |
| 2012 | 14 | 37 |
| 2013 | 29 | 46 |
| 2014 | 59 | 43 |
| 2015 | 37 | 48 |
| 2016 | 37 | 37 |
| 2017 | 31 | 40 |
| 2018 | 34 | 47 |
| 2019 | 33 | 48 |
| 2020 | 38 | 29 |
| 2021 | 27 | 28 |
| 2022 | 28 | 50 |
| 2023 | 21 | 29 |
| 2024 | 30 | 44 |
| 2025 | 25 | 44 |
| 2026 | 21 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Repurposing fluidized catalytic cracking (FCC) systems to generate renewable fuel intermediate compositions6 Oct 2026US 12,753,350 B2Chevron U.S.A.Inc.
- Catalyst compositions and processes for making and using same29 Sep 2026US 12,747,399 B2ExxonMobil Chemical Patents Inc.
- Dual reactor system for simultaneous decontamination and cracking of plastic derived oil to circular chemicals22 Sep 2026US 12,742,125 B2Saudi Arabian Oil Company
- Inhibiting CO emissions during catalyst regeneration15 Sep 2026US 12,734,516 B1Chevron U.S.A.Inc.
- Catalyst for hydrogen peroxide synthesis and regeneration25 Aug 2026US 12,714,987 B2Heesung Catalysts Corporation
- Coral-reef-like bifunctional catalyst for biomass gasification to produce green hydrogen with simultaneous decarbonization, and preparation method and application thereof8 Oct 2026US 2026/0307057 A1Southeast University
- Method of passivating a fischer-tropsch catalyst20 Aug 2026US 2026/0241377 A1Johnson Matthey Davy Technologies Limited
- Deep dechlorination of plastic derived oil using spray dried mixed metal oxide catalyst30 Jul 2026US 2026/0218062 A1Saudi Arabian Oil Company
- Method for purifying linear alpha olefins23 Jul 2026US 2026/0209144 A1Sabic Global Technologies B.V.
- Method for producing diamine containing cyclohexane ring23 Jul 2026US 2026/0209168 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Process for the manufacture of cycloalkyldimethanol147US 6,294,703 B1Mitsubishi Chemical Corporation · 2001
- System and process for removal of pollutants from a gas stream101US 6,610,263 B2EnviroScrub Technologies Corporation · 2003
- Production of aromatics from methane82US 7,589,246 B2ExxonMobil Chemical Patents Inc. · 2009
- Production of amines from alcohols79US 4,014,933 ABASF SE · 1977
- Process for improving the effectiveness of process catalyst76US 5,648,305 A1997