C01B 17/06
From non-gaseous sulfides or materials containing such sulfides
Official title: from non-gaseous sulfides or materials containing such sulfides, e.g. ores
C01B17/06 (From non-gaseous sulfides or materials containing such sulfides) appears on 66 US grants and 23 published applications in this corpus.
Search patents in C01B- Granted patents
- 66
- Published applications
- 23
- Assignees
- 47
- Inventors
- 135
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 4 |
| 2018 | 2 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 5 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Resource utilization method of crude sodium sulfate22 Sep 2026US 12,741,871 B2Hunan Fortune Environmental Technology Co., LTD.
- Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid22 Jul 2025US 12,365,597 B1Innovator Energy, LLC
- Nano-sulfur containing composition and application thereof5 Mar 2024US 11,919,770 B2Suzhou Canastar New-Materials Technology Corporation
- Production of sodium metal by dual temperature electrolysis processes1 Nov 2022US 11,486,046 B2Enlighten Innovations Inc.
- System and method for enhanced metal recovery during atmospheric leaching of metal sulfides21 Sep 2021US 11,124,856 B1FLSmidth A/S
- Method for recovering phosphorus, iron, and sulfur elements from ferrophosphorus slag while co-producing ammonium phosphate fertilizer9 Jul 2026US 2026/0193145 A1Yunnan Minzu University
- Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid11 Jun 2026US 2026/0159405 A1Innovator Energy, LLC
- Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid24 Jul 2025US 2025/0236531 A1Innovator Energy, LLC
- Resource utilization method of crude sodium sulfate29 Feb 2024US 2024/0067522 A1Hunan Fortune Environmental Technology Co., LTD.
- Processes useful in the manufacture of cyclododecasulfur2 Jun 2022US 2022/0169505 A1Eastman Chemical Company
Most cited
By later US patents
- Ammonium polysulfide removal of HCN from gaseous streams, with subsequent production of NH.sub.3, H.sub.2 S, and CO.sub.251US 4,505,881 AShell Oil Company · 1985
- Solution removal of HCN from gaseous streams, with pH adjustment of reacted solution and hydrolysis of thiocyanate formed45US 4,508,693 AShell Oil Company · 1985
- Biological treatment of water28US 4,839,052 ACouncil for Scientific and Industrial Research · 1989
- Method for removing hydrogen sulfide from aqueous streams24US 4,455,236 AGeneral Electric Company · 1984
- Process and apparatus for generating elemental sulfur and re-usable metal oxide from spent metal sulfide sorbents22US 5,401,475 AG.E. Environmental Services, Inc. · 1995