C01B 17/0259
By reduction of sulfates
Official title: {by reduction of sulfates}
C01B17/0259 (By reduction of sulfates) appears on 6 US grants and 3 published applications in this corpus.
Search patents in C01B- Granted patents
- 6
- Published applications
- 3
- Assignees
- 8
- Inventors
- 20
- Latest grant
- 15 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for producing sulfur from phosphogypsum15 Oct 2024US 12,116,273 B2Universite Hassan 1ER De Settat
- Method for the conversion of gypsum to elemental sulfur15 Feb 2000US 6,024,932 AGas Research Institute
- Method for removing sulphur compounds from water12 Dec 1995US 5,474,682 APaques B. V.
- Process for removing SO from a gaseous mixture (OP-3409)11 Sep 1990US 4,956,161 AExxon Research & Engineering Co.
- Decomposition of ammonium thiocyanate23 May 1989US 4,832,930 A
- Selectively permeable nanostructured materials for lithium anode compositions29 Sep 2022US 2022/0310992 A1Conamix Inc.
- Selectively permeable nanostructured materials29 Sep 2022US 2022/0310994 A1Conamix Inc.
- Method for producing sulfur from phosphogypsum24 Feb 2022US 2022/0055898 A1Universite Hassan 1ER De Settat
Most cited
By later US patents
- Method for removing sulphur compounds from water9US 5,474,682 APaques B. V. · 1995
- Process for removing SO from a gaseous mixture (OP-3409)4US 4,956,161 AExxon Research & Engineering Co. · 1990
- Method for the conversion of gypsum to elemental sulfur3US 6,024,932 AGas Research Institute · 2000
- Process for producing sulphur from calcium sulphate2US 4,828,816 ANauchno-Proizvodstvennoe Obiedinenie "Tekhenergokhimprom" · 1989
- Decomposition of ammonium thiocyanate1US 4,832,930 A1989