C01B 33/1071
Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof
Official title: {Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof}
C01B33/1071 (Tetrachloride, trichlorosilane or silicochloroform, dichlorosilane, monochlorosilane or mixtures thereof) appears on 207 US grants and 263 published applications in this corpus.
Search patents in C01B- Granted patents
- 207
- Published applications
- 263
- Assignees
- 101
- Inventors
- 473
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 7 |
| 2005 | 1 | 2 |
| 2006 | 2 | 1 |
| 2007 | 0 | 4 |
| 2008 | 2 | 2 |
| 2009 | 1 | 22 |
| 2010 | 5 | 24 |
| 2011 | 6 | 23 |
| 2012 | 11 | 26 |
| 2013 | 10 | 31 |
| 2014 | 11 | 19 |
| 2015 | 15 | 10 |
| 2016 | 14 | 16 |
| 2017 | 12 | 10 |
| 2018 | 6 | 9 |
| 2019 | 8 | 5 |
| 2020 | 4 | 13 |
| 2021 | 8 | 7 |
| 2022 | 2 | 16 |
| 2023 | 8 | 1 |
| 2024 | 8 | 4 |
| 2025 | 4 | 7 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low temperature process for the safe conversion of the siemens process side-product mixture to chloromonosilanes14 Apr 2026US 12,600,638 B2Momentive Performance Materials Inc.
- Production system, production method and application of general-purpose high-purity chemicals3 Feb 2026US 12,539,471 B2Beijing University of Chemical Technology
- Method for producing trichlorosilane and method for producing polycrystalline silicon rod14 Oct 2025US 12,441,620 B2Tokuyama Corporation
- Hydrogen chloride dehydration method2 Sep 2025US 12,404,172 B2Tokuyama Corporation
- Method for removing an impurity from a chlorosilane mixture6 May 2025US 12,291,458 B2Wacker Chemie AG
- Method for Producing Purified Trichlorosilane24 Sep 2026US 2026/0285694 A1Tokuyama Corporation
- Carbon capture using sodium hydroxide9 Oct 2025US 2025/0312729 A1Agc Carbon Inc.
- Low temperature trichlorosilane hydrogenation9 Oct 2025US 2025/0313482 A1Agc Carbon Inc.
- Metal air batteries9 Oct 2025US 2025/0316704 A1Agc Carbon Inc.
- Process for producing trichlorosilane with structure-optimised silicon particles14 Aug 2025US 2025/0256970 A1Wacker Chemie AG
Most cited
By later US patents
- High purity silane and silicon production55US 4,676,967 AUnion Carbide Corporation · 1987
- Process for removing gaseous contaminating compounds from carrier gases containing halosilane compounds47US 5,051,117 AWacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH · 1991
- Trichlorosilane production process43US 4,526,769 AMotorola, Inc. · 1985
- Gas separation by semi-permeable membranes38US 4,941,893 AUnion Carbide Chemicals and Plastics Company Inc. · 1990
- Waste treatment in silicon production operations37US 4,519,999 AUnion Carbide Corporation · 1985