B01D 2253/306
Surface area
Official title: Surface area, e.g. BET-specific surface
B01D2253/306 (Surface area) appears on 474 US grants and 597 published applications in this corpus.
Search patents in B01D- Granted patents
- 474
- Published applications
- 597
- Assignees
- 385
- Inventors
- 1,479
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 3 |
| 2002 | 5 | 9 |
| 2003 | 10 | 13 |
| 2004 | 7 | 17 |
| 2005 | 7 | 16 |
| 2006 | 12 | 6 |
| 2007 | 7 | 10 |
| 2008 | 8 | 19 |
| 2009 | 11 | 11 |
| 2010 | 9 | 15 |
| 2011 | 8 | 11 |
| 2012 | 10 | 25 |
| 2013 | 10 | 13 |
| 2014 | 14 | 12 |
| 2015 | 15 | 24 |
| 2016 | 18 | 24 |
| 2017 | 15 | 31 |
| 2018 | 22 | 42 |
| 2019 | 32 | 39 |
| 2020 | 38 | 40 |
| 2021 | 23 | 38 |
| 2022 | 30 | 36 |
| 2023 | 26 | 37 |
| 2024 | 28 | 37 |
| 2025 | 29 | 36 |
| 2026 | 16 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adsorbent material, adsorption system, and adsorption process for hydrogen recovery8 Sep 2026US 12,729,116 B2Air Products and Chemicals, Inc.
- Hydrated lime for carbon capture1 Sep 2026US 12,722,136 B1Lhoist North America, Inc.
- Polymeric sorbents for aldehydes and methods of making1 Sep 2026US 12,722,139 B23M Innovative Properties Company
- Method for manufacturing coffee activated carbon using coffee waste, coffee activated carbon manufactured using the same, and combi filter for vehicle air conditioning system including coffee activated carbon25 Aug 2026US 12,714,984 B2Hyundai Motor Company
- Microporous aerogel21 Jul 2026US 12,685,995 B2Commonwealth Scientific and Industrial Research Organisation
- Method for purifying bromine gas1 Oct 2026US 2026/0295496 A1Resonac Corporation
- Structured powders for carbon dioxide capture17 Sep 2026US 2026/0273503 A1Anvil Capture Systems Inc.
- Adsorbent Material, Adsorption System, and Adsorption Process For Hydrogen Recovery17 Sep 2026US 2026/0274664 A1Air Products and Chemicals, Inc.
- Method and apparatus for carbon dioxide sequestration3 Sep 2026US 2026/0257194 A1Anvil Capture Systems Inc.
- Adsorbent and systems for direct air capture27 Aug 2026US 2026/0249228 A1
Most cited
By later US patents
- Mercury removal apparatus and method176US 5,409,522 AADA Technologies, Inc. · 1995
- Process for purifying a gas by adsorption of the impurities on several active carbons147US 6,402,813 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2002
- Adsorptive monolith including activated carbon and method for making said monlith116US 5,914,294 AApplied Ceramics, Inc. · 1999
- System and process for removal of pollutants from a gas stream101US 6,610,263 B2EnviroScrub Technologies Corporation · 2003
- Storage of hydrogen in layered nanostructures94US 5,653,951 ACatalytic Materials, LLC · 1997