B01D 39/2055
Carbonaceous material
Official title: {Carbonaceous material (solid sorbent compositions comprising free carbon B01J20/20)}
B01D39/2055 (Carbonaceous material) appears on 415 US grants and 562 published applications in this corpus.
Search patents in B01D- Granted patents
- 415
- Published applications
- 562
- Assignees
- 384
- Inventors
- 1,327
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 3 |
| 2002 | 8 | 12 |
| 2003 | 10 | 19 |
| 2004 | 10 | 22 |
| 2005 | 7 | 24 |
| 2006 | 10 | 20 |
| 2007 | 17 | 22 |
| 2008 | 10 | 12 |
| 2009 | 13 | 17 |
| 2010 | 10 | 20 |
| 2011 | 10 | 24 |
| 2012 | 13 | 19 |
| 2013 | 15 | 12 |
| 2014 | 10 | 14 |
| 2015 | 6 | 13 |
| 2016 | 15 | 13 |
| 2017 | 7 | 22 |
| 2018 | 8 | 18 |
| 2019 | 12 | 28 |
| 2020 | 23 | 25 |
| 2021 | 21 | 47 |
| 2022 | 8 | 44 |
| 2023 | 22 | 40 |
| 2024 | 24 | 32 |
| 2025 | 24 | 27 |
| 2026 | 18 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Food waste management system6 Oct 2026US 12,753,004 B2SharkNinja Operating LLC
- Graphene oxide scaffold and process of making and using same22 Sep 2026US 12,741,874 B2The United States of America as represented by the Secretary of the Air Force
- Oil and fuel collector25 Aug 2026US 12,714,951 B2Manvers Engineering Limited
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Modular graphene oxide-based microbial fuel filter and process of making and using same28 Jul 2026US 12,691,397 B2The United States of America as represented by the Secretary of the Air Force
- Apparatus and method for solid-liquid separation13 Aug 2026US 2026/0233134 A1Betolar Oyj
- Purification of capsular polysaccharides13 Aug 2026US 2026/0234293 A1Vaxcyte, Inc.
- Filter6 Aug 2026US 2026/0225013 A1Seiko Epson Corporation
- Air Purification System16 Jul 2026US 2026/0199816 A1
- Water Filter System and Method18 Jun 2026US 2026/0166452 A1
Most cited
By later US patents
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Antimicrobial filter cartridge129US 5,868,933 A1999
- Water filter107US 4,753,728 AAmway Corporation · 1988
- Fibrillated fibers and articles made therefrom100US 5,180,630 AAmerican Cyanamid Company · 1993
- Method and apparatus for the continuous extrusion of solid articles98US 5,189,092 AKoslow Technologies Corporation · 1993