C01B 17/64
Thiosulfates
Official title: Thiosulfates; Dithionites; Polythionates
C01B17/64 (Thiosulfates) appears on 128 US grants and 83 published applications in this corpus.
Search patents in C01B- Granted patents
- 128
- Published applications
- 83
- Assignees
- 60
- Inventors
- 184
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 4 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 0 |
| 2010 | 2 | 1 |
| 2011 | 5 | 4 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 6 |
| 2018 | 4 | 5 |
| 2019 | 8 | 7 |
| 2020 | 8 | 8 |
| 2021 | 3 | 3 |
| 2022 | 7 | 5 |
| 2023 | 3 | 10 |
| 2024 | 3 | 9 |
| 2025 | 4 | 5 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method of treatment of gas contaminated with hydrogen sulfide and the reduction of hydrogen sulfide associated odor29 Sep 2026US 12,746,506 B2Streamline Innovations Inc
- Process for producing fertilizer from a biogas stream24 Mar 2026US 12,583,801 B2ThioSolv, LLC
- Method of producing semiconductor nanoparticles25 Nov 2025US 12,480,044 B2National University Corporation Tokai National Higher Education and Research System
- Sulphide oxidation in leaching of minerals25 Nov 2025US 12,480,178 B2Glencore Technology Pty Limited
- Therapeutic uses for sodium thiosulfate formulations27 May 2025US 12,311,026 B2Fennec Pharmaceuticals Inc.
- Anhydrous sodium thiosulfate and formulations thereof13 Nov 2025US 2025/0345435 A1Fennec Pharmaceuticals Inc.
- Process for stabilizing nutrients in a discharged anaerobic digestate10 Jul 2025US 2025/0222400 A1ThioSolv, LLC
- System and Method of Treatment of Gas Contaminated with Hydrogen Sulfide and the Reduction of Hydrogen Sulfide Associated Odor3 Apr 2025US 2025/0108328 A1Streamline Innovations Inc
- Sodium thiosulfate-containing pharmaceutical compositions27 Feb 2025US 2025/0066195 A1Hope Medical Enterprises, Inc. dba Hope Pharmaceuticals
- Sodium thiosulfate-containing pharmaceutical compositions6 Feb 2025US 2025/0042740 A1Hope Medical Enterprises, Inc. dba Hope Pharmaceuticals
Most cited
By later US patents
- Photoelectrochemical device containing a quantum confined group IV semiconductor nanoparticle133US 6,361,660 B12002
- Silver-based antimicrobial compositions57US 6,093,414 A2000
- Sodium thiosulfate-containing pharmaceutical compositions46US 8,496,973 B2Hope Medical Enterprises, Inc. · 2013
- Method of preparing lithium salts41US 6,555,078 B1FMC Corporation · 2003
- High purity lithium salts and lithium salt solutions40US 6,017,500 AFMC Corporation · 2000