C01B 17/22
Alkali metal sulfides or polysulfides
C01B17/22 (Alkali metal sulfides or polysulfides) appears on 203 US grants and 331 published applications in this corpus.
Search patents in C01B- Granted patents
- 203
- Published applications
- 331
- Assignees
- 174
- Inventors
- 790
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 2 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 2 | 3 |
| 2007 | 0 | 3 |
| 2008 | 1 | 0 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 3 | 5 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 11 |
| 2015 | 6 | 8 |
| 2016 | 4 | 13 |
| 2017 | 4 | 21 |
| 2018 | 10 | 22 |
| 2019 | 21 | 14 |
| 2020 | 16 | 20 |
| 2021 | 10 | 19 |
| 2022 | 11 | 38 |
| 2023 | 9 | 27 |
| 2024 | 22 | 37 |
| 2025 | 16 | 37 |
| 2026 | 9 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sulfide-based composite solid state electrolytes and related methods15 Sep 2026US 12,735,318 B2Rivian IP Holdings, LLC
- Apparatus of manufacturing inorganic material and method of manufacturing inorganic material11 Aug 2026US 12,703,023 B2Furukawa Co., Ltd.
- Method of producing lithium sulfide without using hydrogen sulfide gas11 Aug 2026US 12,703,631 B2Hyundai Motor Company
- Sulfidic solid electroylyte and its precursor II28 Jul 2026US 12,692,158 B2AMG Lithium GmbH
- Solid electrolyte production method2 Jun 2026US 12,646,744 B2Idemitsu Kosan Co., Ltd.
- Method for producing lithium sulfide for solid electrolyte8 Oct 2026US 2026/0307991 A1SK On Co., Ltd.
- Method for producing lithium sulfide in a circulating bed reactor17 Sep 2026US 2026/0274667 A1Eurecat S. A.
- Synthesis of lithium-rich iron sulfides by chemical lithation17 Sep 2026US 2026/0274668 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Sulfide solid electrolyte and preparation method and application thereof27 Aug 2026US 2026/0253941 A1AESC Japan Ltd.
- Method for producing lithium sulfide6 Aug 2026US 2026/0225886 A1Mitsubishi Materials Corporation
Most cited
By later US patents
- Stable sulfide compositions, uses, and process for preparation thereof61US 5,948,392 ASchering-Plough Healthcare Products, Inc. · 1999
- Lithium ion-conductive solid electrolyte and method for producing the same46US 5,958,281 AMatsushita Electric Industrial Co., Ltd. · 1999
- Process for the production of bis (silyorganyl) polysulphanes35US 5,859,275 ADegussa AG · 1999
- Production of polysulfide with PTFE coated catalyst32US 4,024,229 AThe Mead Corporation · 1977
- Method of preparing polysulphidic silyl ethers32US 5,770,754 ABayer Aktiengesellschaft · 1998