B01D 2247/04
Regenerating the washing fluid
B01D2247/04 (Regenerating the washing fluid) appears on 108 US grants and 142 published applications in this corpus.
Search patents in B01D- Granted patents
- 108
- Published applications
- 142
- Assignees
- 108
- Inventors
- 337
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 5 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 6 |
| 2012 | 3 | 7 |
| 2013 | 5 | 12 |
| 2014 | 4 | 7 |
| 2015 | 11 | 6 |
| 2016 | 7 | 9 |
| 2017 | 3 | 10 |
| 2018 | 6 | 14 |
| 2019 | 10 | 14 |
| 2020 | 8 | 7 |
| 2021 | 8 | 10 |
| 2022 | 7 | 10 |
| 2023 | 5 | 8 |
| 2024 | 6 | 6 |
| 2025 | 6 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid filter apparatus with thermal shield14 Apr 2026US 12,599,860 B2Edwards Vacuum LLC
- Devices, systems and methods for flux removal from furnace process gas3 Feb 2026US 12,539,485 B2BTU International, Inc.
- Treatment device for exhaust gas from rare earth calcination26 Aug 2025US 12,397,258 B2Baotou Research Institute of Rare Earths
- Gas treatment system and gas treatment method using the same26 Aug 2025US 12,400,879 B2Samsung Electronics Co., Ltd.
- Method and apparatus for improved efficiency and flue gas scrubbing in a fired heater using a condensing convection section17 Jun 2025US 12,330,115 B2BD Energy Systems, LLC
- System to Remove Food Particles from Air Stream27 Aug 2026US 2026/0251326 A1MP Equipment, LLC
- Devices, systems and methods for flux removal from furnace process gas2 Apr 2026US 2026/0091338 A1BTU International, Inc.
- Contactor media and contactor systems for fluids2 Oct 2025US 2025/0303360 A1Intrnls, Inc.
- Air purifying apparatus17 Jul 2025US 2025/0229210 A1MEDMONTS Co., Ltd.
- Air cleaning apparatus with a moist filter13 Feb 2025US 2025/0050262 A1Watervation Co., Ltd.
Most cited
By later US patents
- Process for treating stack gases102US 4,369,167 A1983
- Process for removing particulates from a gas40US 3,957,464 ATeller Environmental Systems, Inc. · 1976
- Method for purifying sewage36US 5,614,102 A1997
- Method of cleaning gas from solid and gaseous matter and apparatus materializing same25US 4,957,512 A1990
- Apparatus and method for extracting heat from contaminated waste steam23US 6,019,819 AAlpha Engineers, Inc. · 2000