B01D 53/0423
Beds in columns
Official title: {Beds in columns}
B01D53/0423 (Beds in columns) appears on 491 US grants and 455 published applications in this corpus.
Search patents in B01D- Granted patents
- 491
- Published applications
- 455
- Assignees
- 322
- Inventors
- 1,370
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 15 | 0 |
| 2001 | 16 | 6 |
| 2002 | 13 | 9 |
| 2003 | 10 | 9 |
| 2004 | 5 | 10 |
| 2005 | 7 | 9 |
| 2006 | 6 | 6 |
| 2007 | 3 | 5 |
| 2008 | 6 | 16 |
| 2009 | 5 | 11 |
| 2010 | 9 | 8 |
| 2011 | 9 | 10 |
| 2012 | 6 | 6 |
| 2013 | 12 | 11 |
| 2014 | 5 | 10 |
| 2015 | 15 | 16 |
| 2016 | 16 | 27 |
| 2017 | 20 | 27 |
| 2018 | 25 | 35 |
| 2019 | 29 | 41 |
| 2020 | 30 | 25 |
| 2021 | 25 | 33 |
| 2022 | 21 | 19 |
| 2023 | 22 | 32 |
| 2024 | 24 | 18 |
| 2025 | 18 | 24 |
| 2026 | 11 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adsorbent bed with increased hydrothermal stability6 Oct 2026US 12,752,233 B2BASF SE
- Catalyst reactor15 Sep 2026US 12,734,473 B2Taiyuan University of Technology
- Adsorbent material, adsorption system, and adsorption process for hydrogen recovery8 Sep 2026US 12,729,116 B2Air Products and Chemicals, Inc.
- Device and method for passive carbon dioxide collection with suspended sorbent disks1 Sep 2026US 12,722,113 B2Arizona Board of Regents on behalf of Arizona State University
- Adsorbent bed with increased hydrothermal stability4 Aug 2026US 12,697,578 B2BASF SE
- Gas separation method, method for producing purified gas, and gas separation apparatus8 Oct 2026US 2026/0306996 A1Asahi Kasei Kabushiki Kaisha
- Dehumidification apparatus, hydrogen production equipment, and method for operating dehumidification apparatus1 Oct 2026US 2026/0295515 A1Mitsubishi Heavy Industries, Ltd.
- Apparatus for recovering carbon dioxide17 Sep 2026US 2026/0273451 A1Niterra Co., Ltd.
- Adsorbent Material, Adsorption System, and Adsorption Process For Hydrogen Recovery17 Sep 2026US 2026/0274664 A1Air Products and Chemicals, Inc.
- Convective-driven system for co2 capture3 Sep 2026US 2026/0257163 A1Nuovo Pignone Tecnologie Srl
Most cited
By later US patents
- High efficiency continuous separation process212US 4,402,832 AUop LLC · 1983
- Serial flow continuous separation process149US 4,498,991 AUop LLC · 1985
- 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
- Fluid fractionator135US 5,593,478 ASeQual Technologies, Inc. · 1997
- Rotary valve assembly for pressure swing adsorption system118US 6,311,719 B1SeQual Technologies, Inc. · 2001