C01G 49/14
Sulfates
Official title: Sulfates {(C01G49/0018 takes precedence)}
C01G49/14 (Sulfates) appears on 99 US grants and 87 published applications in this corpus.
Search patents in C01G- Granted patents
- 99
- Published applications
- 87
- Assignees
- 91
- Inventors
- 205
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 1 | 3 |
| 2008 | 2 | 7 |
| 2009 | 1 | 2 |
| 2010 | 2 | 3 |
| 2011 | 2 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 5 | 4 |
| 2015 | 1 | 2 |
| 2016 | 3 | 5 |
| 2017 | 2 | 4 |
| 2018 | 2 | 5 |
| 2019 | 5 | 1 |
| 2020 | 8 | 14 |
| 2021 | 7 | 7 |
| 2022 | 4 | 3 |
| 2023 | 2 | 3 |
| 2024 | 4 | 6 |
| 2025 | 3 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of removing a uranium source from a water10 Mar 2026US 12,570,554 B2OASE GmbH
- Process for leaching metal sulfides with reagents having thiocarbonyl functional groups16 Sep 2025US 12,416,066 B2Jetti Resources, LLC
- Therapeutic drug for lipid-peroxidation-induced diseases and screening method for therapeutic drugs for lipid-peroxidation-induced diseases20 May 2025US 12,306,164 B2Fuso Pharmaceutical Industries, Ltd.
- Cobalt-manganese sulfate solution from low nickel matte29 Apr 2025US 12,286,360 B2Gem Co., Ltd.
- Process for leaching metal sulfides with reagents having thiocarbonyl functional groups30 Jul 2024US 12,049,680 B2Jetti Resources, LLC
- Process for leaching metal sulfides with reagents having thiocarbonyl functional groups16 Apr 2026US 2026/0103775 A1Jetti Resources, LLC
- A method for producing ferrous sulphate and phosphoric acid12 Mar 2026US 2026/0070788 A1Kemira Oyj
- Pure-phase polyanionic sulfate sodium ion battery positive electrode material and preparation method therefor8 Jan 2026US 2026/0008691 A1Shenzhen Janaenergy Technology Co., Ltd.
- Method for leaching iron element from sulfate slag28 Aug 2025US 2025/0270670 A1Sichuan Huiwei Rongda Technology Co., Ltd
- Method for recovering lithium from waste lithium ion batteries3 Jul 2025US 2025/0219177 A1Asaka Riken Co., Ltd.
Most cited
By later US patents
- Process of preparing a preferred ferric sulfate solution, and product39US 4,707,349 A1987
- Processes for the preparation of acid fortified paramagnetic iron sulfate salt compounds for use in the treatment of agricultural soils38US 5,129,936 A1992
- Preparation and uses of polyferric sulphate15US 5,785,862 AImperial College of Science, Technology and Medicine · 1998
- Stabilized ferrous compound composition13US 4,652,435 ANippon Zeon Co., Ltd. · 1987
- Method of recovering hydrochloric acid from spent hydrochloric acid pickle waste12US 4,222,997 AVoss Steel Corporation · 1980