B01D 47/021
By bubbling the gas through a liquid bath
Official title: {by bubbling the gas through a liquid bath}
B01D47/021 (By bubbling the gas through a liquid bath) appears on 240 US grants and 158 published applications in this corpus.
Search patents in B01D- Granted patents
- 240
- Published applications
- 158
- Assignees
- 135
- Inventors
- 418
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 11 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 0 |
| 2002 | 4 | 2 |
| 2003 | 5 | 7 |
| 2004 | 5 | 4 |
| 2005 | 4 | 10 |
| 2006 | 5 | 13 |
| 2007 | 5 | 3 |
| 2008 | 3 | 6 |
| 2009 | 7 | 2 |
| 2010 | 3 | 5 |
| 2011 | 2 | 5 |
| 2012 | 4 | 2 |
| 2013 | 4 | 7 |
| 2014 | 4 | 2 |
| 2015 | 6 | 6 |
| 2016 | 6 | 4 |
| 2017 | 4 | 6 |
| 2018 | 2 | 15 |
| 2019 | 9 | 8 |
| 2020 | 8 | 5 |
| 2021 | 6 | 10 |
| 2022 | 7 | 9 |
| 2023 | 9 | 8 |
| 2024 | 8 | 8 |
| 2025 | 4 | 6 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Portable breathing air filtering device and method6 Oct 2026US 12,752,231 B2King Abdullah University of Science and Technology
- Pollutant capturer and mobilizer8 Sep 2026US 12,729,640 B2
- Separating carbon dioxide and hydrogen from a multicomponent gaseous stream7 Jul 2026US 12,674,107 B2Saudi Arabian Oil Company
- Liquid filter apparatus with thermal shield14 Apr 2026US 12,599,860 B2Edwards Vacuum LLC
- Liquid bath air filter17 Mar 2026US 12,576,358 B2University of Florida Research Foundation, Inc.
- Biomass gasification gas treatment apparatus13 Aug 2026US 2026/0234484 A1Biomass Energy Corporation
- Layout of hydrogen and oxygen manufacturing plant using hydrogen and oxygen production cells30 Jul 2026US 2026/0218403 A1
- Integrated devices for drying organic solid wastes and extracting metals and methods thereof9 Jul 2026US 2026/0193540 A1Harbin Normal University
- Carbon dioxide capture, carbon resource utilization, and hydrogen production system for steel mill2 Jul 2026US 2026/0183700 A1Lowcarbon Co., Ltd.
- Devices, systems and methods for flux removal from furnace process gas2 Apr 2026US 2026/0091338 A1BTU International, Inc.
Most cited
By later US patents
- Assembly for wet cleaning of combustion gases derived from combustion processes, especially the combustion of coal, coke and fuel oil74US 5,468,270 A1995
- Ultra-filtration vacuum system72US 5,922,093 AMiracle Marketing Corporation · 1999
- Air filter65US 5,848,592 A1998
- Filtering system for cleaning air51US 5,908,493 A1999
- Heavy metal/particulate trap for hot gas clean-up50US 5,354,363 A1994