B01J 20/3491
By pressure treatment
Official title: {by pressure treatment}
B01J20/3491 (By pressure treatment) appears on 146 US grants and 180 published applications in this corpus.
Search patents in B01J- Granted patents
- 146
- Published applications
- 180
- Assignees
- 144
- Inventors
- 539
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 6 | 5 |
| 2003 | 6 | 7 |
| 2004 | 3 | 4 |
| 2005 | 2 | 0 |
| 2006 | 1 | 4 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 1 |
| 2010 | 3 | 3 |
| 2011 | 1 | 3 |
| 2012 | 2 | 13 |
| 2013 | 5 | 1 |
| 2014 | 8 | 7 |
| 2015 | 6 | 14 |
| 2016 | 1 | 8 |
| 2017 | 14 | 9 |
| 2018 | 4 | 8 |
| 2019 | 7 | 11 |
| 2020 | 7 | 7 |
| 2021 | 9 | 8 |
| 2022 | 7 | 8 |
| 2023 | 9 | 17 |
| 2024 | 6 | 17 |
| 2025 | 5 | 12 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Volatile organic compound condensing system and method for enhancing drying efficiency of filter using condensation heat of VOC22 Sep 2026US 12,741,266 B2EMSOLUTION CO., Ltd.
- Process for concentrating CO2 from air and dilute CO2 streams using MOF based physisorbents28 Jul 2026US 12,691,432 B2King Abdullah University of Science and Technology
- Support-free adsorbents for CO2 capture from air28 Jul 2026US 12,691,433 B2Lawrence Livermore National Security, LLC
- Hybrid ultramicroporous materials for water capture and release21 Jul 2026US 12,685,996 B2University of Limerick
- Method for recycling water absorbent resin16 Jun 2026US 12,654,151 B2Nippon Shokubai Co., Ltd.
- Amine compound, amine composition, carbon dioxide absorbent, method for recovering carbon dioxide, and carbon dioxide separation and recovery device8 Oct 2026US 2026/0307005 A1Mitsubishi Gas Chemical Company, Inc.
- Sorbent materials for gas storage1 Oct 2026US 2026/0295557 A1Entegris, Inc.
- Gas separation apparatus, method for managing gas separation apparatus, gas separation method, and method for producing purified gas20 Aug 2026US 2026/0241325 A1Asahi Kasei Kabushiki Kaisha
- Reusable Materials for Air Dehumidification and Moisture Removal that is Regenerable by Mechanical Means30 Jul 2026US 2026/0216639 A1The Hong Kong University of Science and Technology
- Molecular sieve with point-sieving structure, its preparation method, and application in adsorptive separation of propylene and propane thereof23 Jul 2026US 2026/0208152 A1Zhejiang University
Most cited
By later US patents
- Regenerable solid amine sorbent150US 5,876,488 AUnited Technologies Corporation · 1999
- Regenerable supported amine-polyol sorbent97US 5,376,614 AUnited Technologies Corporation · 1994
- Composite adsorbent beads for adsorption process91US 6,284,021 B1The BOC Group, Inc. · 2001
- Regenerable supported amine-polyol sorbent80US 5,492,683 AUnited Technologies Corporation · 1996
- Nano-structure supported solid regenerative polyamine and polyamine polyol absorbents for the separation of carbon dioxide from gas mixtures including the air77US 7,795,175 B2University of Southern California · 2010