C01B 17/0456
The hydrogen sulfide-containing gas being a claus process tail gas
Official title: {the hydrogen sulfide-containing gas being a Claus process tail gas}
C01B17/0456 (The hydrogen sulfide-containing gas being a claus process tail gas) appears on 150 US grants and 65 published applications in this corpus.
Search patents in C01B- Granted patents
- 150
- Published applications
- 65
- Assignees
- 71
- Inventors
- 254
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 5 |
| 2009 | 2 | 4 |
| 2010 | 6 | 5 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 6 | 2 |
| 2014 | 2 | 7 |
| 2015 | 6 | 9 |
| 2016 | 1 | 1 |
| 2017 | 7 | 6 |
| 2018 | 5 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 2 |
| 2021 | 0 | 1 |
| 2022 | 3 | 5 |
| 2023 | 6 | 2 |
| 2024 | 1 | 4 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Removal of sulfur compounds from gas12 May 2026US 12,623,904 B2Saudi Arabian Oil Company
- Method for production of elemental sulfur and sulfuric acid10 Feb 2026US 12,545,580 B2Haldor TopsøE A/S
- Adsorption-based Claus tail gas treatment2 Apr 2024US 11,945,716 B2Saudi Arabian Oil Company
- 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
- Comproportionation-based autocatalytic cycles and related methods18 Dec 2025US 2025/0382173 A1Wisconsin Alumni Research Foundation
- Sulfur Recovery Unit to Convert Hydrogen Sulfide to Elemental Sulfur28 Nov 2024US 2024/0391771 A1Saudi Arabian Oil Company
- Partial oxidation sulfur technology (post)11 Jul 2024US 2024/0228271 A9Saudi Arabian Oil Company
- Partial oxidation sulfur technology (post)25 Apr 2024US 2024/0132345 A1Saudi Arabian Oil Company
- Removal of Sulfur Compounds from Gas4 Apr 2024US 2024/0109776 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Composite hydrogen separation element and module185US 5,498,278 ABend Research, Inc. · 1996
- Composite hydrogen separation element and module164US 5,645,626 ABend Research, Inc. · 1997
- Composite hydrogen separation metal membrane129US 5,393,325 ABend Research, Inc. · 1995
- 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