C01B 17/0413
Characterised by the combustion step
Official title: {characterised by the combustion step}
C01B17/0413 (Characterised by the combustion step) appears on 118 US grants and 67 published applications in this corpus.
Search patents in C01B- Granted patents
- 118
- Published applications
- 67
- Assignees
- 58
- Inventors
- 160
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 7 |
| 2003 | 4 | 1 |
| 2004 | 2 | 3 |
| 2005 | 3 | 4 |
| 2006 | 3 | 2 |
| 2007 | 3 | 3 |
| 2008 | 2 | 3 |
| 2009 | 2 | 1 |
| 2010 | 3 | 1 |
| 2011 | 1 | 6 |
| 2012 | 3 | 2 |
| 2013 | 5 | 3 |
| 2014 | 3 | 4 |
| 2015 | 3 | 2 |
| 2016 | 4 | 2 |
| 2017 | 0 | 2 |
| 2018 | 2 | 4 |
| 2019 | 6 | 5 |
| 2020 | 8 | 5 |
| 2021 | 3 | 0 |
| 2022 | 0 | 0 |
| 2023 | 2 | 2 |
| 2024 | 0 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Removal of sulfur compounds from gas12 May 2026US 12,623,904 B2Saudi Arabian Oil Company
- Adaptive control of BTX removal in sulfur recovery units16 Sep 2025US 12,415,725 B2Saudi Arabian Oil Company
- Sulfur recovery unit oxidation air management during SuperClaus to Claus switching3 Oct 2023US 11,772,970 B1Saudi Arabian Oil Company
- Sulfur recovery by solidifying sulfur on reactor catalyst23 May 2023US 11,655,149 B1Saudi Arabian Oil Company
- Method for operating a claus burner4 May 2021US 10,995,949 B2Messer Industries USA, Inc.
- Sulfur gas recovery incinerator intelligent fuel optimizer30 Oct 2025US 2025/0333305 A1Saudi Arabian Oil Company
- Sulfur Recovery Unit to Convert Hydrogen Sulfide to Elemental Sulfur28 Nov 2024US 2024/0391771 A1Saudi Arabian Oil Company
- Adaptive control of btx removal in sulfur recovery units2 May 2024US 2024/0140796 A1Saudi Arabian Oil Company
- Removal of Sulfur Compounds from Gas4 Apr 2024US 2024/0109776 A1Saudi Arabian Oil Company
- Sulfur Recovery Unit with Fuel Gas Firing16 Nov 2023US 2023/0365406 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Temperature moderation of an oxygen enriched Claus sulfur plant67US 4,552,747 AAir Products and Chemicals, Inc. · 1985
- Temperature moderation of an oxygen enriched claus sulfur plant using an ejector51US 6,508,998 B1Air Products and Chemicals, Inc. · 2003
- Method and apparatus for recovering sulfur from gases containing hydrogen sulfide37US 5,028,409 AAmerican Combustion, Inc. · 1991
- Hydrogen production from in situ partial burning of H.sub.2 S32US 4,481,181 AGA Technologies Inc. · 1984
- Temperature moderation with water of an oxygen enriched claus sulfur plant31US 4,888,162 AAir Products and Chemicals, Inc. · 1989