C01B 17/05
By wet processes
Official title: by wet processes
C01B17/05 (By wet processes) appears on 356 US grants and 82 published applications in this corpus.
Search patents in C01B- Granted patents
- 356
- Published applications
- 82
- Assignees
- 160
- Inventors
- 501
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 16 | 0 |
| 1978 | 11 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 10 | 0 |
| 1983 | 14 | 0 |
| 1984 | 18 | 0 |
| 1985 | 16 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 14 | 0 |
| 1990 | 15 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 12 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 2 |
| 2002 | 4 | 2 |
| 2003 | 12 | 6 |
| 2004 | 1 | 3 |
| 2005 | 4 | 1 |
| 2006 | 0 | 6 |
| 2007 | 5 | 4 |
| 2008 | 5 | 3 |
| 2009 | 4 | 4 |
| 2010 | 5 | 6 |
| 2011 | 5 | 1 |
| 2012 | 1 | 6 |
| 2013 | 2 | 0 |
| 2014 | 6 | 11 |
| 2015 | 7 | 0 |
| 2016 | 0 | 3 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 6 | 5 |
| 2020 | 6 | 5 |
| 2021 | 3 | 3 |
| 2022 | 3 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Continuous process to treat a hydrogen sulphide comprising gas30 Sep 2025US 12,427,476 B2Paqell B.V.
- Field processing natural gas for sulfur recovery with dynamically adjustable flow rate control6 Aug 2024US 12,053,737 B1Streamline Innovations Inc
- Process to convert bisulphide to elemental sulphur10 Jan 2023US 11,548,785 B2Paqell B.V.
- Sulfur recovery within a gas processing system27 Dec 2022US 11,535,515 B2ExxonMobil Upstream Research Company
- Process to prepare elemental sulphur24 May 2022US 11,339,411 B2Paqell B.V.
- Hydrogen sulfide removal process4 Jun 2026US 2026/0151734 A1Merichem Technologies, LLC
- Hydrogen production from hydrogen sulfide28 May 2026US 2026/0145932 A1Baker Hughes Oilfield Operations LLC
- Low Temperature Hydrogen Sulfide Removal Systems with Hydriodic Acid and Iodine Mixtures31 Jul 2025US 2025/0242296 A1Thiozen Inc.
- System and Method for Removing Hydrogen Sulfide From Sour Natural Gas17 Apr 2025US 2025/0122437 A1Pinedale Holdings LLC
- Process to continuously treat a hydrogen sulphide comprising gas27 Jun 2024US 2024/0207785 A1
Most cited
By later US patents
- Process for the removal of H.sub.2 S and CO.sub.2 from gaseous streams97US 4,091,073 AShell Oil Company · 1978
- System for removal of hydrogen sulfide from a gas stream80US 5,738,834 AGas Research Institute · 1998
- Process for sulfur removal suitable for treating high-pressure gas streams77US 7,381,393 B2The Regents of the University of California · 2008
- Process for removal of hydrogen sulfide from a gas stream72US 5,733,516 AGas Research Institute · 1998
- Process for the removal of hydrogen sulfide and mercaptans from liquid and gaseous streams52US 4,036,942 ARhodia Inc. · 1977