C01B 33/10778
Purification
Official title: {Purification}
C01B33/10778 (Purification) appears on 86 US grants and 103 published applications in this corpus.
Search patents in C01B- Granted patents
- 86
- Published applications
- 103
- Assignees
- 64
- Inventors
- 253
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 0 | 10 |
| 2010 | 4 | 7 |
| 2011 | 3 | 9 |
| 2012 | 8 | 9 |
| 2013 | 6 | 9 |
| 2014 | 3 | 4 |
| 2015 | 7 | 1 |
| 2016 | 3 | 8 |
| 2017 | 4 | 8 |
| 2018 | 3 | 6 |
| 2019 | 8 | 2 |
| 2020 | 3 | 4 |
| 2021 | 0 | 2 |
| 2022 | 3 | 6 |
| 2023 | 3 | 4 |
| 2024 | 3 | 2 |
| 2025 | 2 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for purifying iodosilanes29 Sep 2026US 12,747,160 B2Entegris, Inc.
- Method for fabricating trihalodisilane and method for fabricating semiconductor device using the same4 Aug 2026US 12,698,212 B2Samsung Electronics Co., Ltd.
- Production system, production method and application of general-purpose high-purity chemicals3 Feb 2026US 12,539,471 B2Beijing University of Chemical Technology
- Process for removing an impurity from a chlorosilane mixture19 Aug 2025US 12,391,559 B2Wacker Chemie AG
- 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
- Method for preparing diiodosilane9 Oct 2025US 2025/0313483 A1Dnf Co., Ltd.
- Method and system for selective recovery of monochlorosilane and dichlorosilane in polysilicon production process6 Jun 2024US 2024/0182497 A1Advanced Material Solutions, LLC
- Production system, production method and application of general-purpose high-purity chemicals8 Feb 2024US 2024/0042343 A1Beijing University of Chemical Technology
- Method for producing hydrogenated polysilane compound9 Nov 2023US 2023/0357028 A1Nippon Shokubai Co., Ltd.
Most cited
By later US patents
- Purification of hydrosilanes and siloxanes19US 4,156,689 AGeneral Electric Company · 1979
- Purification of halide19US 4,557,921 AEthyl Corporation · 1985
- Method and apparatus for improved gettering for reactant gases19US 4,564,509 ANortheast Semiconductor Inc. · 1986
- Purification of silicon source materials17US 4,374,110 AMotorola, Inc. · 1983
- Purification of silicon source materials17US 4,409,195 AMotorola, Inc. · 1983