C01B 17/503
Of sulfuric acid
Official title: {of sulfuric acid}
C01B17/503 (Of sulfuric acid) appears on 11 US grants and 9 published applications in this corpus.
Search patents in C01B- Granted patents
- 11
- Published applications
- 9
- Assignees
- 18
- Inventors
- 41
- Latest grant
- 19 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 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 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for conversion of sulfur trioxide and hydrogen production19 Jul 2022US 11,390,522 B2Indian Institute of Technology Delhi
- Method for production of sulfuric acid from sulfur containing feeds with gas quenching14 Jan 2020US 10,532,930 B2Haldor Topsoe A/S
- Hydrogen production process24 Feb 2015US 8,961,922 B2Toyota Jidosha Kabushiki Kaisha
- Hybrid sulfur cycle operation for high-temperature gas-cooled reactors17 Feb 2015US 8,956,526 B2Savannah Nuclear Solutions, LLC
- Process for generating recoverable sulfur containing compounds from a spent acid stream4 Jun 2002US 6,399,040 B1Rohm and Haas Company
- Strong gas process and apparatus for sulfuric acid production5 Jun 2025US 2025/0178899 A1Noram Engineering and Constructors Ltd.
- Method for microwave-enhanced carbon reduction of waste sulfuric acid5 Jun 2025US 2025/0178900 A1Institute of Process Engineering, CAS
- Methods and systems for efficiently and cleanly manufacturing ammonia, ammonium sulfate, nitric acid, ammonium nitrate, or combinations thereof from coal and petcoke products9 May 2024US 2024/0150189 A1Decarbtek Global Corp.
- Process for conversion of sulfur trioxide and hydrogen production22 Jul 2021US 2021/0221683 A1Indian Institute of Technology Delhi
- Method for production of sulfuric acid from sulfur containing feeds with gas quenching10 Oct 2019US 2019/0308879 A1Haldor TopsøE A/S
Most cited
By later US patents
- Method and apparatus for producing a product in a regenerator furnace from impure waste containing a non-gasifiable impurity110US 5,640,709 AMolten Metal Technology, Inc. · 1997
- Method and apparatus for producing a product in a regenerator furnace from impure waste containing a non-gasifiable impurity108US 5,640,706 AMolten Metal Technology, Inc. · 1997
- Method for removing acid gases from flue gas58US 6,126,910 A2000
- Combustion method for improved endothermic dissociation17US 5,022,332 AUnion Carbide Industrial Gases Technology Corporation · 1991
- Combustion method and apparatus11US 4,256,721 ABOC Limited · 1981