B01D 2253/30
Physical properties of adsorbents
B01D2253/30 (Physical properties of adsorbents) appears on 1,903 US grants and 2,114 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,903
- Published applications
- 2,114
- Assignees
- 1,031
- Inventors
- 4,854
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 11 | 0 |
| 1989 | 13 | 0 |
| 1990 | 14 | 0 |
| 1991 | 9 | 0 |
| 1992 | 19 | 0 |
| 1993 | 20 | 0 |
| 1994 | 12 | 0 |
| 1995 | 19 | 0 |
| 1996 | 32 | 0 |
| 1997 | 36 | 0 |
| 1998 | 40 | 0 |
| 1999 | 44 | 0 |
| 2000 | 42 | 0 |
| 2001 | 41 | 16 |
| 2002 | 49 | 47 |
| 2003 | 58 | 66 |
| 2004 | 47 | 66 |
| 2005 | 31 | 68 |
| 2006 | 45 | 68 |
| 2007 | 34 | 37 |
| 2008 | 42 | 69 |
| 2009 | 35 | 54 |
| 2010 | 41 | 68 |
| 2011 | 42 | 60 |
| 2012 | 50 | 78 |
| 2013 | 55 | 65 |
| 2014 | 61 | 71 |
| 2015 | 69 | 102 |
| 2016 | 65 | 85 |
| 2017 | 71 | 94 |
| 2018 | 76 | 126 |
| 2019 | 84 | 91 |
| 2020 | 90 | 102 |
| 2021 | 64 | 117 |
| 2022 | 77 | 100 |
| 2023 | 91 | 131 |
| 2024 | 77 | 117 |
| 2025 | 84 | 129 |
| 2026 | 47 | 87 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Ammonium-functionalized polysulfone copolymers for moisture-swing CO2 capture22 Sep 2026US 12,741,265 B2Arizona Board of Regents on behalf of Arizona State University
- Process of forming a gas adsorbant macroporous material15 Sep 2026US 12,734,503 B2Spiritus Technologies, Pbc
- Vehicle air conditioning system8 Sep 2026US 12,728,705 B2NGK Insulators, Ltd.
- Adsorbent material, adsorption system, and adsorption process for hydrogen recovery8 Sep 2026US 12,729,116 B2Air Products and Chemicals, Inc.
- Method for purifying bromine gas1 Oct 2026US 2026/0295496 A1Resonac Corporation
- Carbon-carbon composite sorbent formulations for carbon dioxide adsorption, and related methods24 Sep 2026US 2026/0284634 A1Schlumberger Technology Corporation
- Gas turbine test bench with gas capture24 Sep 2026US 2026/0287471 A1
- 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.
Most cited
By later US patents
- Sorbents and methods for the removal of mercury from combustion gases199US 6,953,494 B22005
- Microcomponent assembly for efficient contacting of fluid191US 6,126,723 ABattelle Memorial Institute · 2000
- High capacity regenerable sorbent for removal of mercury from flue gas191US 6,719,828 B12004
- High frequency pressure swing adsorption186US 6,176,897 B1Questor Industries Inc. · 2001
- Rotary pressure swing adsorption apparatus181US 6,406,523 B1QuestAir Technologies Inc. · 2002