B01D 2257/80
Water
B01D2257/80 (Water) appears on 2,372 US grants and 2,857 published applications in this corpus.
Search patents in B01D- Granted patents
- 2,372
- Published applications
- 2,857
- Assignees
- 1,362
- Inventors
- 6,127
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 13 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 13 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 16 | 0 |
| 1989 | 14 | 0 |
| 1990 | 15 | 0 |
| 1991 | 14 | 0 |
| 1992 | 20 | 0 |
| 1993 | 18 | 0 |
| 1994 | 12 | 0 |
| 1995 | 11 | 0 |
| 1996 | 15 | 0 |
| 1997 | 39 | 0 |
| 1998 | 47 | 0 |
| 1999 | 59 | 0 |
| 2000 | 46 | 0 |
| 2001 | 31 | 14 |
| 2002 | 41 | 34 |
| 2003 | 46 | 42 |
| 2004 | 37 | 42 |
| 2005 | 24 | 60 |
| 2006 | 31 | 45 |
| 2007 | 35 | 44 |
| 2008 | 31 | 32 |
| 2009 | 28 | 45 |
| 2010 | 37 | 55 |
| 2011 | 31 | 75 |
| 2012 | 48 | 76 |
| 2013 | 68 | 89 |
| 2014 | 71 | 89 |
| 2015 | 65 | 109 |
| 2016 | 87 | 128 |
| 2017 | 92 | 151 |
| 2018 | 108 | 158 |
| 2019 | 132 | 150 |
| 2020 | 145 | 161 |
| 2021 | 107 | 168 |
| 2022 | 134 | 163 |
| 2023 | 131 | 179 |
| 2024 | 120 | 235 |
| 2025 | 149 | 278 |
| 2026 | 113 | 235 |
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
- System and method for direct air capture of water and CO26 Oct 2026US 12,752,234 B2Battelle Memorial Institute
- Hybrid structure, manufacturing method for the same, and fog capture including the same29 Sep 2026US 12,746,505 B2Research & Business Foundation Sungkyunkwan University
- Dehumidification unit and desiccant drum therein29 Sep 2026US 12,747,872 B2Trane International Inc.
- High-performance fabric for water/diesel separating filters22 Sep 2026US 12,741,236 B2Saati S.P.A.
- Systems and methods for optimizing carbon dioxide capture using water vapor adsorption8 Oct 2026US 2026/0306991 A1GE Vernova Infrastructure Technology LLC
- Direct air capture of carbon dioxide with nanofluidic flows8 Oct 2026US 2026/0307002 A1National Technology & Engineering Solutions of Sandia, LLC
- Gas processing device and gas production method8 Oct 2026US 2026/0307003 A1Hirata Corporation
- Co2 capture and hydrogen recovery from fuel cell anode off gas8 Oct 2026US 2026/0312104 A1Uop LLC
- Adsorbent filter assembly1 Oct 2026US 2026/0295488 A1Donaldson Company, Inc.
Most cited
By later US patents
- Portable oxygen concentration system and method of using the same310US 6,651,658 B1SeQual Technologies, Inc. · 2003
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- High frequency pressure swing adsorption186US 6,176,897 B1Questor Industries Inc. · 2001
- Portable oxygen concentration system and method of using the same182US 6,629,525 B2SeQual Technologies, Inc. · 2003
- Rotary pressure swing adsorption apparatus181US 6,406,523 B1QuestAir Technologies Inc. · 2002