C01B 17/0447
Separation of the obtained sulfur
Official title: {Separation of the obtained sulfur}
C01B17/0447 (Separation of the obtained sulfur) appears on 50 US grants and 43 published applications in this corpus.
Search patents in C01B- Granted patents
- 50
- Published applications
- 43
- Assignees
- 27
- Inventors
- 83
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 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 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 2 | 7 |
| 2015 | 3 | 5 |
| 2016 | 1 | 1 |
| 2017 | 6 | 4 |
| 2018 | 4 | 3 |
| 2019 | 4 | 3 |
| 2020 | 2 | 4 |
| 2021 | 3 | 1 |
| 2022 | 3 | 5 |
| 2023 | 4 | 1 |
| 2024 | 1 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Sulfur recovery unit oxidation air management during SuperClaus to Claus switching3 Oct 2023US 11,772,970 B1Saudi Arabian Oil Company
- Method for production of sulfur and sulfuric acid4 Jul 2023US 11,691,877 B2Haldor TopsøE A/S
- Systems, methods, and techniques for processing hydrogen sulfide19 Mar 2026US 2026/0078001 A1Ohio State Innovation Foundation
- System and Method for Removing Hydrogen Sulfide From Sour Natural Gas17 Apr 2025US 2025/0122437 A1Pinedale Holdings LLC
- Producing hydrogen from hydrogen sulfide20 Mar 2025US 2025/0091864 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
Most cited
By later US patents
- Process for the simultaneous removal of sulfur and mercury41US 7,060,233 B1TDA Research, Inc. · 2006
- Device and method for condensing, separating, and storing liquid sulfur in a Claus plant40US 8,545,793 B2Thyssenkrupp Uhde GmbH · 2013
- Low temperature sulfur recovery23US 4,391,791 AStandard Oil Company (Indiana) · 1983
- Cooling and condensing of sulfur and water from Claus process gas18US 4,526,590 AStandard Oil Company (Indiana) · 1985
- High pressure process for sulfur recovery from a hydrogen sulfide containing gas stream16US 4,684,514 AAir Products and Chemicals, Inc. · 1987