C01G 9/06
Sulfates
C01G9/06 (Sulfates) appears on 51 US grants and 23 published applications in this corpus.
Search patents in C01G- Granted patents
- 51
- Published applications
- 23
- Assignees
- 44
- Inventors
- 112
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 4 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 3 |
| 2020 | 0 | 3 |
| 2021 | 4 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for recovering constituents from batteries12 May 2026US 12,626,931 B2Environmental 360 Solutions Ltd.
- Method for preparing soft magnetic manganese-zinc ferrite composite by removing impurities from industrial waste step by step20 Aug 2024US 12,065,360 B1Chongqing Shangjia Electronic Co., Ltd.
- Method of separating and recovering bromine from printed circuit board incineration ash by two-step process2 Jan 2024US 11,858,822 B2Beijing University of Technology
- Antimicrobial and agrochemical compositions26 Jul 2022US 11,395,492 B2VM Agritech Limited
- Method of pretreatment and bromine recovery of PCB incineration ash14 Dec 2021US 11,198,615 B2Beijing University of Technology
- Process for producing furfural and catalyst for use in same20 Jun 2024US 2024/0199565 A1Advanced Fuel Innovation Pty Ltd
- Dilution solution for measuring free steroids in blood and method for measuring steroid using the same5 Oct 2023US 2023/0314292 A1Korea Institute of Science and Technology
- A method of separating and recovering bromine from printed circuit board incineration ash by two-step process22 Jun 2023US 2023/0192488 A1Beijing University of Technology
- System and method for recovering constituents from batteries29 Dec 2022US 2022/0416324 A1Raw Materials Company Inc.
- Intrinsic co2 capture process for the production of metal oxides, cement, co2 air capture or a combination thereof4 Mar 2021US 2021/0061706 A1Innovator Energy, LLC
Most cited
By later US patents
- Recovering zinc from a material containing zinc and iron32US 4,124,462 AMX-Processer Reinhardt & Co. AB · 1978
- Method for removal of monovalent ions from ZnSO.sub.4 electrolyte by electrodialysis19US 4,715,939 ACominco Ltd. · 1987
- Process for defluorinating an acid sulphate solution15US 4,567,027 AMetallurgie Hoboken-Overpelt · 1986
- Method of employing elemental zinc for the purification of aqueous solutions of metallic salts14US 4,078,040 ANipki po Tzvetna Metalurgia · 1978
- Sulfur recovery process using metal oxide absorbent with reducing gas purge13US 4,849,202 AAmoco Corporation · 1989