B01J 20/34
Regenerating or reactivating
B01J20/34 (Regenerating or reactivating) appears on 1,421 US grants and 1,815 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,421
- Published applications
- 1,815
- Assignees
- 1,039
- Inventors
- 4,582
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 11 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 13 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 25 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 16 | 0 |
| 1996 | 14 | 0 |
| 1997 | 21 | 0 |
| 1998 | 14 | 0 |
| 1999 | 21 | 0 |
| 2000 | 20 | 0 |
| 2001 | 15 | 10 |
| 2002 | 23 | 24 |
| 2003 | 25 | 33 |
| 2004 | 19 | 31 |
| 2005 | 13 | 22 |
| 2006 | 16 | 44 |
| 2007 | 23 | 26 |
| 2008 | 24 | 46 |
| 2009 | 12 | 44 |
| 2010 | 33 | 67 |
| 2011 | 30 | 49 |
| 2012 | 38 | 74 |
| 2013 | 52 | 43 |
| 2014 | 41 | 68 |
| 2015 | 49 | 80 |
| 2016 | 40 | 60 |
| 2017 | 60 | 96 |
| 2018 | 79 | 98 |
| 2019 | 71 | 82 |
| 2020 | 61 | 98 |
| 2021 | 66 | 92 |
| 2022 | 69 | 105 |
| 2023 | 71 | 131 |
| 2024 | 72 | 155 |
| 2025 | 96 | 137 |
| 2026 | 61 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01J 20/345Using a particular desorbing compound or mixture715
- B01J 20/3483By thermal treatment not covered by groups b01j20/3441 - b01j20/3475519
- B01J 20/3433Of sorbents or filter aids other than those covered by b01j20/3408 -492
- B01J 20/3425Of sorbents or filter aids comprising organic materials359
- B01J 20/3416Of sorbents or filter aids comprising free carbon267
- B01J 20/3408Of aluminosilicate molecular sieves197
- B01J 20/3491By pressure treatment146
- B01J 20/3441Regeneration or reactivation by electric current, ultrasound or irradiation141
Recent patents
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Microwave regeneration of carbon dioxide sorbents6 Oct 2026US 12,752,256 B2UT-Battelle, LLC
- Volatile organic compound condensing system and method for enhancing drying efficiency of filter using condensation heat of VOC22 Sep 2026US 12,741,266 B2EMSOLUTION CO., Ltd.
- Method of regeneration of carbonaceous adsorbent and system for carrying out the method15 Sep 2026US 12,734,504 B2Desotec NV
- Chelator based eluents for solid phase extraction of phosphorylated compounds8 Sep 2026US 12,730,040 B2Waters Technologies Corporation
- Processes for sorbent regeneration8 Oct 2026US 2026/0306995 A1Shell USA, Inc.
- Amine compound, amine composition, carbon dioxide absorbent, method for recovering carbon dioxide, and carbon dioxide separation and recovery device8 Oct 2026US 2026/0307005 A1Mitsubishi Gas Chemical Company, Inc.
- Sorbent for lithium extraction from brines8 Oct 2026US 2026/0307042 A1International Battery Metals, Ltd.
- Amino acid based carbon dioxide capture catalyzed with three-dimensional graphene8 Oct 2026US 2026/0307044 A1University of Wyoming
- Selective hydrodechlorination of liquid and gas streams from plastics pyrolysis processes8 Oct 2026US 2026/0308088 A1BASF SE
Most cited
By later US patents
- Magnetic particles for use in separations333US 4,554,088 AAdvanced Magnetics, Inc. · 1985
- Process for removing mercury from a gas or a liquid by absorption on a copper sulfide containing solid mass253US 4,094,777 AInstitut Francais du Petrole · 1978
- Magnetic particles for use in separations245US 4,672,040 AAdvanced Magnetics, Inc. · 1987
- Titanium-containing molecular sieves201US 4,500,651 AUnion Carbide Corporation · 1985
- Regenerable solid amine sorbent150US 5,876,488 AUnited Technologies Corporation · 1999