C01B 17/24
Preparation by reduction
C01B17/24 (Preparation by reduction) appears on 15 US grants and 38 published applications in this corpus.
Search patents in C01B- Granted patents
- 15
- Published applications
- 38
- Assignees
- 32
- Inventors
- 109
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 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 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 2 |
| 2018 | 0 | 4 |
| 2019 | 2 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 3 |
| 2024 | 0 | 6 |
| 2025 | 0 | 7 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of producing lithium sulfide without using hydrogen sulfide gas11 Aug 2026US 12,703,631 B2Hyundai Motor Company
- Synthesis of lithium-rich iron sulfides by chemical lithation5 May 2026US 12,617,680 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Method for preparing high-purity lithium sulfide by using industrial-grade butyllithium17 Mar 2026US 12,577,102 B2Jiangxi Ganfeng Lithium Industry Co., Ltd.
- Sulfide solid electrolyte1 Mar 2022US 11,264,642 B2Idemitsu Kosan Co., Ltd.
- Method of producing sulfide solid electrolyte material22 Sep 2020US 10,784,012 B2Toyota Jidosha Kabushiki Kaisha
- 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
- Method for producing lithium sulfide6 Aug 2026US 2026/0225886 A1Mitsubishi Materials Corporation
- Lithium sulfide powder and method of manufacturing same23 Jul 2026US 2026/0213256 A1Posco Holdings Inc.
- Method for producing lithium sulfide16 Jul 2026US 2026/0200733 A1Solid Ionics Co., Ltd
- Compound, composition, solid electrolyte material, sheet for battery, battery, and method for producing compound16 Jul 2026US 2026/0204626 A1Idemitsu Kosan Co., Ltd.
Most cited
By later US patents
- Absorption of sulfur oxides from hot gases24US 4,198,380 ARockwell International Corporation · 1980
- Process for the production of alkali metal hydroxides and elemental sulfur from sulfur-containing alkali-metal salts9US 5,391,267 AEcochem Aktiengesellschaft · 1995
- Gas purification liquors8US 4,098,886 ABritish Gas Corporation · 1978
- Method of treating material containing sodium sulphate and/or sodium carbonate in a pulp mill5US 5,328,563 AA. Ahlstrom Corporation · 1994
- Reduction of sodium sulfate to sodium sulfide4US 4,198,385 AChemiefaser Lenzing Aktiengesellschaft · 1980