B01D 53/8618
Mixtures of hydrogen sulfide and carbon dioxides
Official title: {Mixtures of hydrogen sulfide and carbon dioxides}
B01D53/8618 (Mixtures of hydrogen sulfide and carbon dioxides) appears on 16 US grants and 15 published applications in this corpus.
Search patents in B01D- Granted patents
- 16
- Published applications
- 15
- Assignees
- 16
- Inventors
- 40
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 3 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plasma treatment in sulfur recovery8 Sep 2026US 12,728,387 B2Saudi Arabian Oil Company
- System and method for cleaning of biogas1 Apr 2025US 12,264,288 B1Unconventional Gas Solutions, LLC
- Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst15 Oct 2024US 12,116,326 B2Saudi Arabian Oil Company
- Indoor and outdoor nano air purifier and system comprising said purifier16 Apr 2024US 11,959,662 B2Dirac Inc.
- Device and a process for separating methane from a gas mixture containing methane, carbon dioxide and hydrogen sulfide2 Jan 2024US 11,857,916 B2Evonik Operations GmbH
- Method and system for upgrading biogas20 Nov 2025US 2025/0352943 A1Iogen Corporation
- Plasma Treatment in Sulfur Recovery4 Apr 2024US 2024/0109034 A1Saudi Arabian Oil Company
- Method and apparatus for low temperature regeneration of acid gas using a catalyst21 Mar 2024US 2024/0091703 A1Saudi Arabian Oil Company
- Conversion of hydrogen sulfide and carbon dioxide into hydrocarbons using non-thermal plasma and a catalyst25 May 2023US 2023/0159409 A1Saudi Arabian Oil Company
- Membrane process for h2 recovery from sulfur recovery tail gas stream of sulfur recovery units and process for environmentally greener sales gas3 Mar 2022US 2022/0062818 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Composite catalytic converter48US 5,140,813 A1992
- Process for the high recovery efficiency of sulfur from an acid gas stream41US 7,351,392 B2Shell Oil Company · 2008
- Method and apparatus for desulfurizing fuel gas28US 5,769,909 AInternational Fuel Cells Corporation · 1998
- Process for the removal of acid gases from gaseous streams18US 4,359,450 AShell Oil Company · 1982
- Method and system for upgrading biogas17US 10,760,024 B2Iogen Corporation · 2020