C01B 17/20
Methods for preparing sulfides or polysulfides, in general
Official title: Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium and barium, see the relevant groups of subclasses C01F or C01G, according to the metal)
C01B17/20 (Methods for preparing sulfides or polysulfides, in general) appears on 267 US grants and 225 published applications in this corpus.
Search patents in C01B- Granted patents
- 267
- Published applications
- 225
- Assignees
- 158
- Inventors
- 540
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 10 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 3 |
| 2002 | 8 | 13 |
| 2003 | 11 | 15 |
| 2004 | 12 | 18 |
| 2005 | 7 | 19 |
| 2006 | 25 | 14 |
| 2007 | 11 | 10 |
| 2008 | 7 | 10 |
| 2009 | 15 | 8 |
| 2010 | 8 | 14 |
| 2011 | 11 | 13 |
| 2012 | 6 | 9 |
| 2013 | 8 | 7 |
| 2014 | 8 | 13 |
| 2015 | 10 | 6 |
| 2016 | 5 | 5 |
| 2017 | 8 | 8 |
| 2018 | 8 | 7 |
| 2019 | 8 | 6 |
| 2020 | 7 | 6 |
| 2021 | 2 | 4 |
| 2022 | 4 | 2 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 2025 | 2 | 7 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of forming an alkaline-earth metal selenide and/or sulfide compound7 Jul 2026US 12,674,096 B2City University of Hong Kong
- Method of producing semiconductor nanoparticles25 Nov 2025US 12,480,044 B2National University Corporation Tokai National Higher Education and Research System
- Sulfur-based active material, electrode, non-aqueous electrolyte secondary battery and producing methods thereof21 Jan 2025US 12,206,107 B2Sumitomo Rubber Industries, Ltd.
- Method for producing amorphous sulfide exhibiting excellent ionic conductivity19 Nov 2024US 12,145,841 B2BEILab corp.
- Method for producing electrodes for all-solid state batteries8 Oct 2024US 12,113,165 B2Toyota Jidosha Kabushiki Kaisha
- Compound, composition, solid electrolyte material, sheet for battery, battery, and method for producing compound16 Jul 2026US 2026/0204626 A1Idemitsu Kosan Co., Ltd.
- Low temperature purification of metal sulfides25 Jun 2026US 2026/0176145 A1Solid Power Operating, Inc.
- Method for rapid synthesis of metal sulfides11 Jun 2026US 2026/0159401 A1Solid Power Operating, Inc.
- Layered material nanosheet production method, layered mos2 nanosheet, and layered graphite nanosheet26 Feb 2026US 2026/0054989 A1Tohoku University
- Composite cathode active material for lithium secondary battery with excellent coating quality and method of preparing the same4 Dec 2025US 2025/0372626 A1Hansol Chemical Co., Ltd.
Most cited
By later US patents
- Highly luminescent color-selective nano-crystalline materials747US 6,322,901 B1Massachusetts Institute of Technology · 2001
- Highly luminescent color-selective materials and method of making thereof406US 6,207,229 B1Massachusetts Institute of Technology · 2001
- Preparation of nanocrystallites375US 6,576,291 B2Massachusetts Institute of Technology · 2003
- Highly luminescent color selective nanocrystalline materials171US 6,861,155 B2Massachusetts Institute of Technology · 2005
- Tellurium-containing nanocrystalline materials156US 6,607,829 B1Massachusetts Institute of Technology · 2003