C01B 17/046
Without intermediate formation of sulfur dioxide
Official title: {without intermediate formation of sulfur dioxide}
C01B17/046 (Without intermediate formation of sulfur dioxide) appears on 125 US grants and 73 published applications in this corpus.
Search patents in C01B- Granted patents
- 125
- Published applications
- 73
- Assignees
- 66
- Inventors
- 217
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 6 |
| 2003 | 5 | 5 |
| 2004 | 2 | 2 |
| 2005 | 5 | 8 |
| 2006 | 3 | 1 |
| 2007 | 3 | 2 |
| 2008 | 5 | 3 |
| 2009 | 3 | 7 |
| 2010 | 5 | 4 |
| 2011 | 2 | 1 |
| 2012 | 2 | 1 |
| 2013 | 4 | 6 |
| 2014 | 3 | 9 |
| 2015 | 8 | 4 |
| 2016 | 2 | 1 |
| 2017 | 6 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production4 Nov 2025US 12,459,810 B2Nextchem Tech S.P.A.
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production8 Mar 2022US 11,267,700 B2Nextchem S.P.A.
- Direct oxidation of hydrogen sulfide in a hydroprocessing recycle gas stream with hydrogen purification22 Feb 2022US 11,253,816 B2Saudi Arabian Oil Company
- Plant and process for treating a stream comprising hydrogen sulfide18 May 2021US 11,008,217 B2Centre National De La Recherche Scientifique
- Methods for SO2 recoveries from sulfur plants23 Jun 2020US 10,689,254 B1
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production5 Feb 2026US 2026/0035240 A1Nextchem Tech S.P.A.
- Producing hydrogen from hydrogen sulfide20 Mar 2025US 2025/0091864 A1Saudi Arabian Oil Company
- Off-gas production utilization for sru superclaus convertor safety5 Dec 2024US 2024/0400389 A1Saudi Arabian Oil Company
- Processes useful in the manufacture of cyclododecasulfur26 May 2022US 2022/0162068 A1Eastman Chemical Company
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production14 Apr 2022US 2022/0112080 A1Nextchem S.P.A.
Most cited
By later US patents
- Plasma whirl reactor apparatus and methods of use164US 7,622,693 B2Foret Plasma Labs, LLC · 2009
- Two component-three dimensional catalysis105US 6,355,093 B1Eltron Research, Inc. · 2002
- Process for the high pressure degassing of hydrogen sulfide from liquid sulfur61US 5,632,967 AGoar, Allison & Associates, Inc. · 1997
- 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 removal of hydrogen sulfide from gas streams51US 4,311,683 AUnion Oil Company of California · 1982