C01B 33/039
By conversion of the silicon into a compound, optional purification of the
Official title: by conversion of the silicon into a compound, optional purification of the compound, and reconversion into silicon
C01B33/039 (By conversion of the silicon into a compound, optional purification of the) appears on 21 US grants and 27 published applications in this corpus.
Search patents in C01B- Granted patents
- 21
- Published applications
- 27
- Assignees
- 26
- Inventors
- 70
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 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 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recycling silicon from batteries with silicon-based active materials11 Aug 2026US 12,706,332 B2Enevate Corporation
- Method for producing porous nanocrystalline silicon4 Aug 2026US 12,698,211 B2Uchicago Argonne, LLC
- Method for purifying silicon by means of phase separation dealloying reaction1 Jul 2025US 12,344,530 B2Wuhan University of Science and Technology
- Systems and methods for extracting liquid16 Feb 2021US 10,918,970 B2Corner Star Limited
- Primary distillation boron reduction21 May 2019US 10,294,109 B2Mitsubishi Materials Corporation
- Method For Producing Porous Nanocrystalline Silicon18 Jan 2024US 2024/0018006 A1Uchicago Argonne, LLC
- Recycling silicon from batteries with silicon-based active materials7 Dec 2023US 2023/0395887 A1Enevate Corporation
- Method for purifying silicon by means of phase separation dealloying reaction9 Jun 2022US 2022/0177316 A1Wuhan University of Science and Technology
- Method for producing active material9 Dec 2021US 2021/0384499 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for extracting liquid24 Jan 2019US 2019/0022552 A1Corner Star Limited
Most cited
By later US patents
- Process for Polycrystalline film silicon growth529US 6,281,098 B1Midwest Research Institute · 2001
- Method for production of high purity silicon28US 6,887,448 B2Solarworld Aktiengesellschaft · 2005
- Method and apparatus for producing high purity silicon18US 4,481,232 AThe United States of America as represented by the Department of Energy · 1984
- Production process and apparatus for high purity silicon8US 6,395,249 B1Nippon Steel Corporation · 2002
- Purification and deposition of silicon by an iodide disproportionation reaction6US 6,468,886 B2Midwest Research Institute · 2002