C01B 17/04
From gaseous sulfur compounds including gaseous sulfides
Official title: from gaseous sulfur compounds including gaseous sulfides
C01B17/04 (From gaseous sulfur compounds including gaseous sulfides) appears on 1,084 US grants and 479 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,084
- Published applications
- 479
- Assignees
- 419
- Inventors
- 1,626
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 42 | 0 |
| 1977 | 40 | 0 |
| 1978 | 39 | 0 |
| 1979 | 18 | 0 |
| 1980 | 21 | 0 |
| 1981 | 23 | 0 |
| 1982 | 21 | 0 |
| 1983 | 31 | 0 |
| 1984 | 43 | 0 |
| 1985 | 33 | 0 |
| 1986 | 22 | 0 |
| 1987 | 19 | 0 |
| 1988 | 17 | 0 |
| 1989 | 34 | 0 |
| 1990 | 28 | 0 |
| 1991 | 23 | 0 |
| 1992 | 22 | 0 |
| 1993 | 19 | 0 |
| 1994 | 20 | 0 |
| 1995 | 16 | 0 |
| 1996 | 23 | 0 |
| 1997 | 20 | 0 |
| 1998 | 24 | 0 |
| 1999 | 18 | 0 |
| 2000 | 21 | 0 |
| 2001 | 20 | 6 |
| 2002 | 13 | 23 |
| 2003 | 24 | 14 |
| 2004 | 8 | 14 |
| 2005 | 13 | 15 |
| 2006 | 8 | 18 |
| 2007 | 18 | 14 |
| 2008 | 13 | 13 |
| 2009 | 17 | 27 |
| 2010 | 23 | 24 |
| 2011 | 14 | 19 |
| 2012 | 11 | 29 |
| 2013 | 31 | 18 |
| 2014 | 25 | 25 |
| 2015 | 24 | 23 |
| 2016 | 8 | 16 |
| 2017 | 21 | 25 |
| 2018 | 22 | 14 |
| 2019 | 22 | 21 |
| 2020 | 23 | 26 |
| 2021 | 22 | 18 |
| 2022 | 19 | 16 |
| 2023 | 16 | 16 |
| 2024 | 9 | 21 |
| 2025 | 10 | 15 |
| 2026 | 13 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalyst medium comprising hollow microspheres22 Sep 2026US 12,741,267 B2Axens
- Producing hydrogen from hydrogen sulfide1 Sep 2026US 12,722,970 B2Saudi Arabian Oil Company
- Plasma reactor and plasma chemical reactions18 Aug 2026US 12,708,890 B2Nanoplazz Technologies Ltd.
- Generate hydrogen as fuel at natural gas processing plant to reduce carbon dioxide emissions11 Aug 2026US 12,704,082 B2Saudi Arabian Oil Company
- Process of converting hydrogen sulfide and carbon dioxide to methane and solid sulfur on carbon-based catalysts under milder conditions with reduced carbon footprint14 Jul 2026US 12,680,042 B2Saudi Arabian Oil Company
- Tail gas treatment by two stage adsorption with intermediate cooling30 Jul 2026US 2026/0216647 A1Saudi Arabian Oil Company
- Apparatus and method for honeycomb ceramic-based plasma degradation of sf618 Jun 2026US 2026/0166515 A1CSG Electric Power Research Institute Co., Ltd.
- Systems and methods to produce hydrogen gas from hydrogen sulfide18 Jun 2026US 2026/0167485 A1Saudi Arabian Oil Company
- 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
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
- Plasma whirl reactor apparatus and methods of use164US 7,622,693 B2Foret Plasma Labs, LLC · 2009
- Methods and configurations for acid gas enrichment156US 7,635,408 B2Fluor Technologies Corporation · 2009
- Method and apparatus for treating a sour gas146US 8,206,669 B2Air Products and Chemicals, Inc. · 2012