C12M 47/18
Gas cleaning
Official title: {Gas cleaning, e.g. scrubbers; Separation of different gases (separating dispersed particles from gases or vapours B01D45/00; separation of gases or vapours B01D53/00; gas washing apparatus for laboratory uses B01L5/04)}
C12M47/18 (Gas cleaning) appears on 215 US grants and 323 published applications in this corpus.
Search patents in C12M- Granted patents
- 215
- Published applications
- 323
- Assignees
- 222
- Inventors
- 577
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 1 | 18 |
| 2007 | 3 | 8 |
| 2008 | 5 | 11 |
| 2009 | 4 | 12 |
| 2010 | 5 | 19 |
| 2011 | 5 | 22 |
| 2012 | 11 | 18 |
| 2013 | 22 | 29 |
| 2014 | 15 | 17 |
| 2015 | 16 | 20 |
| 2016 | 13 | 12 |
| 2017 | 9 | 6 |
| 2018 | 9 | 9 |
| 2019 | 7 | 10 |
| 2020 | 9 | 9 |
| 2021 | 4 | 19 |
| 2022 | 11 | 19 |
| 2023 | 10 | 22 |
| 2024 | 7 | 10 |
| 2025 | 12 | 17 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Device for removing volatile organic compounds24 Feb 2026US 12,558,650 B2
- Method and apparatus for treating biogas20 Jan 2026US 12,528,726 B2Energy Tech Innovations, LLC
- Biogas feed for carbon monoxide production27 Aug 2026US 2026/0250588 A1Topsoe A/S
- Process and system for carbon capture by microbial fermentation30 Jul 2026US 2026/0218246 A1LanzaTech, Inc.
- System and method for performing a regenerative desulfurization of raw biogas21 May 2026US 2026/0138075 A1Obeo Biogas
- Structured reactor for biofilm cultivation and gaseous extraction7 May 2026US 2026/0125626 A1H2Biosys Inc.
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Most cited
By later US patents
- Bioconversion of waste biomass to useful products285US 5,821,111 ABioengineering Resources, Inc. · 1998
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- Separation of carbon dioxide from methane utilizing zeolitic imidazolate framework materials64US 8,142,746 B2ExxonMobil Research and Engineering Company · 2012
- Integrated microalgae production and electricity cogeneration60US 5,659,977 ACyanotech Corporation · 1997