B01D 2251/51
Hydrogen sulfide
B01D2251/51 (Hydrogen sulfide) appears on 12 US grants and 15 published applications in this corpus.
Search patents in B01D- Granted patents
- 12
- Published applications
- 15
- Assignees
- 15
- Inventors
- 34
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production4 Nov 2025US 12,459,810 B2Nextchem Tech S.P.A.
- Methods and systems for automatically generating a remedial action in an industrial facility7 Jan 2025US 12,190,701 B2Suncoke Technology and Development LLC
- Methods and systems for automatically generating a remedial action in an industrial facility22 Nov 2022US 11,508,230 B2Suncoke Technology and Development LLC
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production8 Mar 2022US 11,267,700 B2Nextchem S.P.A.
- Systems and methods of reducing selenium contamination in waste water17 Aug 2021US 11,091,378 B2General Electric Company
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production5 Feb 2026US 2026/0035240 A1Nextchem Tech S.P.A.
- Hydrogen fluoride gas removal device and method for removing hydrogen fluoride gas2 May 2024US 2024/0139670 A1Resonac Corporation
- Methods and systems for automatically generating a remedial action in an industrial facility9 Nov 2023US 2023/0360511 A1Suncoke Technology and Development LLC
- Catalyst for catalytic oxidative cracking of hydrogen sulphide with concurrent hydrogen production14 Apr 2022US 2022/0112080 A1Nextchem S.P.A.
- Mechanochemical process31 Mar 2022US 2022/0097110 A1Smart Material Printing B.V.
Most cited
By later US patents
- Methods and systems for automatically generating a remedial action in an industrial facility13US 11,508,230 B2Suncoke Technology and Development LLC · 2022
- Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology and sulfur dioxide-selective absorption technology10US 10,106,411 B2Saudi Arabian Oil Company · 2018
- Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology and sulfur dioxide-selective absorption technology6US 10,479,684 B2Saudi Arabian Oil Compnay · 2019
- Gas purifying method5US 3,933,979 AMetallgesellschaft Aktiengesellschaft · 1976
- Process and system for destroying carbonaceous materials and composition and system thereof3US 7,718,152 B2Swapsol Corp. · 2010