C01B 17/60
Isolation of sulfur dioxide from gases
C01B17/60 (Isolation of sulfur dioxide from gases) appears on 151 US grants and 23 published applications in this corpus.
Search patents in C01B- Granted patents
- 151
- Published applications
- 23
- Assignees
- 81
- Inventors
- 251
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 16 | 0 |
| 1978 | 7 | 0 |
| 1979 | 10 | 0 |
| 1980 | 11 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 3 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated sulfur recovery and hydrogen production process26 May 2026US 12,637,353 B2
- Regenerative recovery of sulfur dioxide from effluent gases30 Nov 2021US 11,185,812 B2MECS, Inc.
- Process for removing S02 from gas with S02 content that is temporarily very high20 Oct 2020US 10,807,038 B2Shell Oil Company
- System and a method for producing aqueous sulphuric acid5 Nov 2019US 10,465,339 B2Valmet Technologies Oy
- Process and apparatus for cooling a gas containing SO2 and/or SO3 and water21 May 2019US 10,294,105 B2Outotec (Finland) Oy
- Method And Apparatus For Removing A Target Substance From A Gas27 Feb 2025US 2025/0065268 A1Verdus Technologies PTE. LTD.
- Integrated sulfur recovery and hydrogen production process26 Oct 2023US 2023/0339753 A1
- Water treatment tank and desulfurization device24 Dec 2020US 2020/0398215 A1Mitsubishi Hitachi Power Systems, Ltd.
- Process for removing s02 from gas with s02 content that is temporarily very high16 Jan 2020US 2020/0016530 A1Cansolv Technologies Inc.
- Regenerative recovery of sulfur dioxide from effluent gases4 Jul 2019US 2019/0201837 A1E. I. Du Pont de Nemours and Company
Most cited
By later US patents
- Method and apparatus for flue gas cleaning by separation and liquefaction of sulfur dioxide and carbon dioxide127US 5,133,190 A1992
- Dielectric waveguide sensors and their use in immunoassays111US 4,880,752 ACiba Corning Diagnostics Corp. · 1989
- Adsorbent regeneration and gas separation utilizing microwave heating96US 4,322,394 ABattelle Memorial Institute · 1982
- Process for removing sulfur from sulfur-containing gases87US 4,804,521 ABoard of Regents, The University of Texas System · 1989
- Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction72US 5,321,946 A1994