C01B 17/54
By burning elemental sulfur
Official title: by burning elemental sulfur
C01B17/54 (By burning elemental sulfur) appears on 47 US grants and 38 published applications in this corpus.
Search patents in C01B- Granted patents
- 47
- Published applications
- 38
- Assignees
- 38
- Inventors
- 122
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 5 |
| 2010 | 4 | 7 |
| 2011 | 3 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 2 | 1 |
| 2020 | 4 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and apparatus for oxygen injection in a sulfur furnace14 Apr 2026US 12,600,627 B2Messer Industries USA, Inc.
- Integrated ammonia and sulfuric acid production plant and process20 Jan 2026US 12,528,752 B2Chemetics Inc.
- Systems and methods for producing sulfurous acid4 Nov 2025US 12,459,817 B2Agua Dulce Capital, LLC
- Use of sulfur as alternative carbon-free fuel in ammonia primary reformer combustion zone, by coupling ammonia and sulfuric acid production facilities21 Oct 2025US 12,447,454 B1Saudi Arabian Mining Company (Ma'aden)
- Efficient and energy-saving system and process for recycling waste heat of production, and method for large-scale production of silica gel3 Jun 2025US 12,320,588 B2Qingdao Meigao Group Co., Ltd.
- Methods and systems for producing sulfur-containing products11 Jun 2026US 2026/0159389 A1Applied Technology Limited Partnership
- Efficient and energy-saving system and process for recycling waste heat of production, and method for large-scale production of silica gel15 May 2025US 2025/0155194 A1Qingdao Meigao Group Co., Ltd.
- Systems and methods for producing sulfuric acid or liquefied sulfur dioxide30 Jan 2025US 2025/0033967 A1Chemetics Inc.
- Process and Apparatus for Oxygen Injection in a Sulfur Furnace24 Oct 2024US 2024/0351877 A1Messer Industries USA, Inc.
- Systems and methods for producing sulfurous acid29 Aug 2024US 2024/0286898 A1Agua Dulce Capital, LLC
Most cited
By later US patents
- Sulfur dioxide generation by submerged combustion and reduced thermal cycling by use of a hot recycle of sulfur70US 5,204,082 ACF Braun & Company · 1993
- Sulfur dioxide generator25US 4,966,757 A1990
- Sulfurous acid generator21US 4,526,771 AInternational Environmental, Inc. · 1985
- Sulphur-burning and gaseous products absorption system and components therefor16US 4,039,289 AChemsoil Corporation · 1977
- Process for preparing sulfur dioxide14US 4,010,246 AHoechst Aktiengesellschaft · 1977