B01D 2247/00
Details relating to the separation of dispersed particles from gases, air or
Official title: Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
B01D2247/00 (Details relating to the separation of dispersed particles from gases, air or) appears on 248 US grants and 327 published applications in this corpus.
Search patents in B01D- Granted patents
- 248
- Published applications
- 327
- Assignees
- 213
- Inventors
- 690
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 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 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 5 |
| 2007 | 1 | 0 |
| 2008 | 1 | 8 |
| 2009 | 3 | 5 |
| 2010 | 2 | 3 |
| 2011 | 4 | 19 |
| 2012 | 5 | 15 |
| 2013 | 17 | 19 |
| 2014 | 13 | 17 |
| 2015 | 21 | 20 |
| 2016 | 17 | 15 |
| 2017 | 10 | 21 |
| 2018 | 15 | 23 |
| 2019 | 19 | 27 |
| 2020 | 14 | 23 |
| 2021 | 16 | 32 |
| 2022 | 17 | 38 |
| 2023 | 18 | 14 |
| 2024 | 16 | 9 |
| 2025 | 10 | 7 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2247/10Means for removing the washing fluid dispersed in the gas or vapoursIndexing code142
- B01D 2247/04Regenerating the washing fluidIndexing code108
- B01D 2247/14Fan arrangements for providing induced draftIndexing code44
- B01D 2247/08Means for controlling the separation processIndexing code34
- B01D 2247/12Fan arrangements for providing forced draftIndexing code26
- B01D 2247/06Separation units provided with means for cleaning and maintenanceIndexing code6
- B01D 2247/02Enhancing the particle separation by electrostatic or magnetic effectsIndexing code5
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.
- Methods and equipment for treatment of odorous gas streams13 Jan 2026US 12,521,675 B2
- Air purifier6 Jan 2026US 12,516,834 B1Baren Home Appliance Technology (Dongguan) Co., Ltd.
- Electrostatically conductive filter element and fuel filter7 Oct 2025US 12,434,177 B2Zhejiang Laien Filtration System Co., Ltd.
- System to Remove Food Particles from Air Stream27 Aug 2026US 2026/0251326 A1MP Equipment, LLC
- Automatic proportioning and spary system of compound ultra-fine dust capture agent30 Jul 2026US 2026/0216631 A1Anhui University of Science and Technology
- Wet scrubber for capturing dust from a bulk powder16 Apr 2026US 2026/0102728 A1Halliburton Energy Services.Inc.
- 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.
Most cited
By later US patents
- Process for treating stack gases102US 4,369,167 A1983
- Method and apparatus for removal of gas bubbles from blood62US 7,488,448 B2Indian Wells Medical, Inc. · 2009
- Marine exhaust gas cleaning system44US 9,914,094 B2Marine Exhaust Solutions Inc. · 2018
- Process for removing particulates from a gas40US 3,957,464 ATeller Environmental Systems, Inc. · 1976
- Method and apparatus for cleaning a gas39US 6,764,531 B22004