C01B 17/36
Purification
C01B17/36 (Purification) appears on 11 US grants and 18 published applications in this corpus.
Search patents in C01B- Granted patents
- 11
- Published applications
- 18
- Assignees
- 16
- Inventors
- 72
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 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 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 4 |
| 2024 | 0 | 1 |
| 2025 | 3 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of producing lithium sulfide without using hydrogen sulfide gas11 Aug 2026US 12,703,631 B2Hyundai Motor Company
- Method for preparing high-purity lithium sulfide by using industrial-grade butyllithium17 Mar 2026US 12,577,102 B2Jiangxi Ganfeng Lithium Industry Co., Ltd.
- EV-grade high-purity lithium sulfide and preparation method for the same3 Jun 2025US 12,319,568 B2Tianqi Lithium Corporation
- Lithium ion conducting sulfide glass fabrication6 May 2025US 12,294,050 B2PolyPlus Battery Company
- EV-grade lithium sulfide and preparation method for the same25 Mar 2025US 12,258,269 B1Tianqi Lithium Corporation
- Mass production apparatus for high-purity lithium sulfide5 Mar 2026US 2026/0061385 A1Lake Technology Limited
- Method for producing high-purity alkali metal sulfide3 Jul 2025US 2025/0214838 A1Solivis Inc.
- Method of preparing lithium sulfide8 May 2025US 2025/0145484 A1SK Innovation Co., Ltd.
- Ev-grade lithium sulfide and preparation method for the same20 Mar 2025US 2025/0091866 A1Tianqi Lithium Corporation
- Ev-grade high-purity lithium sulfide and preparation method for the same20 Mar 2025US 2025/0091867 A1Tianqi Lithium Corporation
Most cited
By later US patents
- Lithium ion conducting sulfide glass fabrication4US 12,294,050 B2PolyPlus Battery Company · 2025
- Method for purifying lithium sulfide2US 8,084,160 B2Idemitsu Kosan Co., Ltd. · 2011
- Process for separation and purification of sodium sulfide2US 9,114,988 B2Aditya Birla Science and Technology Company Private Limited · 2015
- Glass particles2US 9,196,925 B2Idemitsu Kosan Co., Ltd. · 2015
- Method of producing crystals of anhydrous sodium sulfide1US 4,908,043 ASankyo Kasei Kabushiki Kaisha · 1990