B01J 20/3416
Of sorbents or filter aids comprising free carbon
Official title: {of sorbents or filter aids comprising free carbon, e.g. activated carbon}
B01J20/3416 (Of sorbents or filter aids comprising free carbon) appears on 267 US grants and 349 published applications in this corpus.
Search patents in B01J- Granted patents
- 267
- Published applications
- 349
- Assignees
- 258
- Inventors
- 890
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 6 |
| 2003 | 5 | 7 |
| 2004 | 4 | 8 |
| 2005 | 3 | 5 |
| 2006 | 2 | 13 |
| 2007 | 6 | 6 |
| 2008 | 4 | 11 |
| 2009 | 0 | 10 |
| 2010 | 11 | 17 |
| 2011 | 4 | 7 |
| 2012 | 3 | 22 |
| 2013 | 15 | 6 |
| 2014 | 12 | 19 |
| 2015 | 10 | 19 |
| 2016 | 8 | 13 |
| 2017 | 9 | 19 |
| 2018 | 12 | 21 |
| 2019 | 15 | 14 |
| 2020 | 15 | 13 |
| 2021 | 16 | 20 |
| 2022 | 13 | 11 |
| 2023 | 9 | 19 |
| 2024 | 9 | 25 |
| 2025 | 11 | 21 |
| 2026 | 7 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Alkylated cyclodextrin compositions and processes for preparing and using the same4 Aug 2026US 12,698,348 B2CyDex Pharmaceuticals, Inc.
- Water treatment method with renewal of the adsorbent to a targeted intermediate age14 Jul 2026US 12,679,748 B2Suez International
- Membrane comprising biopolymers and carbon nanomaterials for removing heavy metals in polluted waters2 Jun 2026US 12,643,088 B2Universidad TéCnica Federico Santa MaríA
- Processes for removing perfluoroalkyl substances and regenerating an adsorbent used with same14 Apr 2026US 12,599,800 B2Uop LLC
- Sorbent and method for carbon dioxide capture and recovery24 Feb 2026US 12,558,669 B1Metasorbex Corporation
- Amino acid based carbon dioxide capture catalyzed with three-dimensional graphene8 Oct 2026US 2026/0307044 A1University of Wyoming
- Sorbent materials for gas storage1 Oct 2026US 2026/0295557 A1Entegris, Inc.
- Charged Sorbent Material6 Aug 2026US 2026/0225069 A1
- Processes for removing perfluoroalkyl substances and regenerating an adsorbent used with same30 Jul 2026US 2026/0216550 A1Uop LLC
- Process for separating nanoplastics from aqueous matrices by means of using carbon black particles16 Jul 2026US 2026/0200763 A1Universidad Autonoma De Madrid
Most cited
By later US patents
- Sorbents for the oxidation and removal of mercury135US 7,435,286 B2Energy & Environmental Research Center Foundation · 2008
- Process for regenerating adsorbents with supercritical fluids71US 4,124,528 AArthur D. Little, Inc. · 1978
- Hg removal from wastewater by regenerative adsorption62US 5,080,799 AMobil Oil Corporation · 1992
- Method for preparation of activated carbon58US 8,563,467 B2The Governors of the University of Alberta · 2013
- Coated absorbent fibers57US 5,834,114 AThe Board of Trustees of the University of Illinois · 1998