B01D 53/8615
Mixtures of hydrogen sulfide and sulfur oxides
Official title: {Mixtures of hydrogen sulfide and sulfur oxides}
B01D53/8615 (Mixtures of hydrogen sulfide and sulfur oxides) appears on 73 US grants and 48 published applications in this corpus.
Search patents in B01D- Granted patents
- 73
- Published applications
- 48
- Assignees
- 52
- Inventors
- 150
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 2 |
| 2003 | 2 | 0 |
| 2004 | 3 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 3 |
| 2017 | 2 | 2 |
| 2018 | 5 | 3 |
| 2019 | 2 | 3 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 3 | 8 |
| 2023 | 5 | 1 |
| 2024 | 1 | 3 |
| 2025 | 0 | 0 |
| 2026 | 2 | 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
- Method for production of elemental sulfur and sulfuric acid10 Feb 2026US 12,545,580 B2Haldor TopsøE A/S
- Indoor and outdoor nano air purifier and system comprising said purifier16 Apr 2024US 11,959,662 B2Dirac Inc.
- Method for production of elemental sulfur by part or fully catalytic oxidation of Claus tail gas7 Nov 2023US 11,807,527 B2Haldor TopsøE A/S
- Method for production of sulfur and sulfuric acid4 Jul 2023US 11,691,877 B2Haldor TopsøE A/S
- Systems and methods for extracting and removing hydrogen sulfide and thiols26 Dec 2024US 2024/0424443 A1Sm Intellectual Technologies LLC
- Plasma Treatment in Sulfur Recovery4 Apr 2024US 2024/0109034 A1Saudi Arabian Oil Company
- Hydrogen Production by Sulfur Steam Reforming4 Apr 2024US 2024/0109772 A1Saudi Arabian Oil Company
- Sulfur Recovery by Solidifying Sulfur on Reactor Catalyst4 May 2023US 2023/0139298 A1Saudi Arabian Oil Company
- Method for production of elemental sulfur by part or fully catalytic oxidation of claus tail gas28 Jul 2022US 2022/0234891 A1Haldor TopsøE A/S
Most cited
By later US patents
- Process for recovering as sulfur the compounds H2S, SO2, COS and/or CS2 in a tail gas from a sulfur plant52US 6,444,185 B1Elf Exploration Production · 2002
- Process for the production of sulfur52US 6,776,974 B1Monsanto Enviro-Chem Systems, Inc. · 2004
- Process for purifying a gas containing sulfur compounds28US 4,044,114 AInstitut Francais du Petrole · 1977
- Reduction of sulfur content in a gaseous stream25US 5,512,260 AMobil Oil Corporation · 1996
- Method for processing a sulfur-containing gas and a hydrogenation catalyst used therefor21US 8,668,894 B2China Petroleum & Chemical Corporation · 2014