B01D 2253/308
Pore size
B01D2253/308 (Pore size) appears on 538 US grants and 563 published applications in this corpus.
Search patents in B01D- Granted patents
- 538
- Published applications
- 563
- Assignees
- 379
- Inventors
- 1,596
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 11 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 20 | 0 |
| 2001 | 10 | 4 |
| 2002 | 18 | 14 |
| 2003 | 18 | 14 |
| 2004 | 11 | 17 |
| 2005 | 8 | 12 |
| 2006 | 13 | 21 |
| 2007 | 7 | 7 |
| 2008 | 9 | 21 |
| 2009 | 13 | 17 |
| 2010 | 7 | 10 |
| 2011 | 8 | 11 |
| 2012 | 11 | 20 |
| 2013 | 19 | 20 |
| 2014 | 14 | 13 |
| 2015 | 14 | 24 |
| 2016 | 22 | 25 |
| 2017 | 15 | 32 |
| 2018 | 16 | 32 |
| 2019 | 23 | 25 |
| 2020 | 28 | 32 |
| 2021 | 19 | 46 |
| 2022 | 28 | 34 |
| 2023 | 25 | 33 |
| 2024 | 24 | 21 |
| 2025 | 28 | 36 |
| 2026 | 9 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrated lime for carbon capture1 Sep 2026US 12,722,136 B1Lhoist North America, Inc.
- Systems and methods for purifying solvents1 Sep 2026US 12,722,140 B2Fujifilm Electronic Materials U.S.A., Inc.
- Microporous aerogel21 Jul 2026US 12,685,995 B2Commonwealth Scientific and Industrial Research Organisation
- Two-stage carbon dioxide adsorption using collapsed zeolite with ultra-small pores14 Jul 2026US 12,678,778 B2Saudi Arabian Oil Company
- Carbon-carbon composite sorbent formulations for carbon dioxide adsorption, and related methods26 May 2026US 12,636,632 B2Schlumberger Technology Corporation
- Carbon-carbon composite sorbent formulations for carbon dioxide adsorption, and related methods24 Sep 2026US 2026/0284634 A1Schlumberger Technology Corporation
- Dehydration device and assembly, and method for obtaining such an assembly27 Aug 2026US 2026/0251392 A1Lgd
- Porous adsorption material for removing neon from helium and preparation method thereof20 Aug 2026US 2026/0241332 A1Guangzhou Guanggang Gases & Energy Co., Ltd.
- Porous material for hydrogen purification and method for producing same, and hydrogen purification apparatus20 Aug 2026US 2026/0241366 A1Osaka Gas Chemicals Co., Ltd.
- Hydrophobic acidic gas absorbents20 Aug 2026US 2026/0241369 A1
Most cited
By later US patents
- Microcomponent assembly for efficient contacting of fluid191US 6,126,723 ABattelle Memorial Institute · 2000
- Storage and delivery system for gaseous hydride, halide, and organometallic group V compounds164US 5,518,528 AAdvanced Technology Materials, Inc. · 1996
- 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
- Air purification system and process135US 4,231,768 APall Corporation · 1980
- Heavy hydrocarbon recovery from pressure swing adsorption unit tail gas134US 6,610,124 B1Engelhard Corporation · 2003