C01B 32/36
Reactivation or regeneration
C01B32/36 (Reactivation or regeneration) appears on 163 US grants and 111 published applications in this corpus.
Search patents in C01B- Granted patents
- 163
- Published applications
- 111
- Assignees
- 128
- Inventors
- 319
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 10 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 3 | 5 |
| 2011 | 1 | 4 |
| 2012 | 4 | 2 |
| 2013 | 6 | 5 |
| 2014 | 1 | 6 |
| 2015 | 6 | 7 |
| 2016 | 5 | 19 |
| 2017 | 11 | 17 |
| 2018 | 14 | 6 |
| 2019 | 10 | 5 |
| 2020 | 3 | 6 |
| 2021 | 1 | 5 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 3 |
| 2025 | 4 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carbon-based porous material and preparation method and use thereof10 Feb 2026US 12,545,589 B2China Petroleum & Chemical Corporation
- Method and device for regenerating granular activated carbon by arc initiation and discharge11 Nov 2025US 12,466,736 B2Zhejiang Qizheng Environmental Protection Technology Co. Ltd
- Systems and methods of regenerating activated carbon29 Jul 2025US 12,370,527 B2Revive Environmental Technology, LLC
- Highly mesoporous activated carbon13 May 2025US 12,296,316 B2Carbon Technology Holdings, LLC
- Process for pure carbon production18 Feb 2025US 12,227,417 B2West Virginia University Board of Governors on behalf of West Virginia University
- Method for recovering and regenerating activated carbon17 Sep 2026US 2026/0274682 A1Kuraray Co., Ltd.
- Integrated system of regenerating activated carbon using superheated steam and treating regenerated discharge matter11 Jun 2026US 2026/0158470 A1WINTEC GLOVIS Co., Ltd.
- Activated carbon composite and method of removing contaminant14 May 2026US 2026/0131306 A1Birchtech Corp.
- Highly mesoporous activated carbon14 Aug 2025US 2025/0256260 A1Carbon Technology Holdings, LLC
- Carbon processing for energy storage systems8 May 2025US 2025/0145471 A1CapyBara Energy, LLC
Most cited
By later US patents
- Enhancing biochar performance using pyrolysis acid stream72US 9,527,780 B2Cool Planet Energy Systems, Inc. · 2016
- Process for regenerating adsorbents with supercritical fluids71US 4,124,528 AArthur D. Little, Inc. · 1978
- Fabrication of twisted and non-twisted nanofiber yarns56US 8,926,933 B2Board of Regents, The University of Texas System · 2015
- Desulfurization and low temperature regeneration of carbonaceous adsorbent53US 4,219,537 AFoster Wheeler Energy Corporation · 1980
- Method for producing negative carbon fuel49US 8,430,937 B2Cool Planet Biofuels, Inc. · 2013