C01G 49/12
Sulfides
Official title: Sulfides {(C01G49/0018 takes precedence)}
C01G49/12 (Sulfides) appears on 63 US grants and 67 published applications in this corpus.
Search patents in C01G- Granted patents
- 63
- Published applications
- 67
- Assignees
- 76
- Inventors
- 233
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 2 | 4 |
| 2007 | 0 | 3 |
| 2008 | 2 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 6 |
| 2012 | 4 | 3 |
| 2013 | 3 | 3 |
| 2014 | 0 | 0 |
| 2015 | 3 | 3 |
| 2016 | 1 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 6 |
| 2019 | 5 | 2 |
| 2020 | 3 | 3 |
| 2021 | 1 | 5 |
| 2022 | 1 | 4 |
| 2023 | 3 | 2 |
| 2024 | 2 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lithium-rich aluminum iron sulfide Li-ion battery cathodes8 Sep 2026US 12,729,133 B2California Institute of Technology
- Method for treating polluted acidic wastewater from smelting with activated pyrite concentrate25 Nov 2025US 12,479,745 B2Kunming Metallurgical Research Institute Co., Ltd.
- Process for the synthesis of nanoparticles of transition metal chalcogenides18 Mar 2025US 12,252,397 B2Council of Scientific and Industrial Research
- Method for recycling copper-containing wastewater from micro-etching11 Feb 2025US 12,221,366 B1Central South University
- Method for preparing iron sulfide, cathode comprising iron sulfide prepared thereby for lithium secondary battery, and lithium secondary battery comprising same26 Nov 2024US 12,155,073 B2LG Energy Solution, Ltd.
- Method of preparing amorphous iron sulfide carrier for removing nitrogen from water5 Mar 2026US 2026/0062312 A1E & Chem Solution Corp.
- Method of producing sulfur-based active material1 Jan 2026US 2026/0005240 A1Sumitomo Rubber Industries, Ltd.
- Method for treating polluted acidic wastewater from smelting with activated pyrite concentrate2 Oct 2025US 2025/0304476 A1Kunming Metallurgical Research Institute Co., Ltd.
- Sulfur-based active material, electrode, lithium-ion secondary battery, and producing methods thereof3 Jul 2025US 2025/0214862 A1Sumitomo Rubber Industries, Ltd.
- Positive electrode active material, positive electrode, battery, and method for producing lithium-containing compound5 Jun 2025US 2025/0183297 A1Kyoto University
Most cited
By later US patents
- Synthesis of magnetite nanoparticles and the process of forming Fe-based nanomaterials70US 6,962,685 B2International Business Machines Corporation · 2005
- Process of forming compounds using reverse micelle or reverse microemulsion systems38US 5,770,172 ABattelle Memorial Institute · 1998
- Method of using a porous Fe.sub.3 O.sub.4 drilling mud additive26US 4,008,775 AIronite Products Company · 1977
- Preparation of metal chalcogenides from reactions of metal compounds and chalcogen25US 7,393,516 B22008
- Method and composition for scavenging sulphide in drilling fluids and composition22US 6,746,611 B2Halliburton Energy Services.Inc. · 2004