C01B 33/184
By hydrolysis of tetrafluoride
Official title: {by hydrolysis of tetrafluoride}
C01B33/184 (By hydrolysis of tetrafluoride) appears on 15 US grants and 6 published applications in this corpus.
Search patents in C01B- Granted patents
- 15
- Published applications
- 6
- Assignees
- 9
- Inventors
- 41
- Latest grant
- 27 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 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 | 1 | 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 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for fabrication of glass preform27 Feb 2024US 11,912,604 B2
- Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass24 May 2022US 11,339,076 B2Heraeus Quarzglas GmbH & Co.KG
- Mixed oxide powder comprising alkali metal oxide, and silicone rubber comprising this powder4 Jan 2011US 7,862,797 B2Evonik Degussa GmbH
- Process for the production of high purity silica from waste by-product silica and hydrogen fluoride29 Dec 1998US 5,853,685 A
- Process for preparing finely-divided silicon dioxide in good yield25 Feb 1986US 4,572,827 A
- Method for preparing a silica embedded carbon black composite aggregate and composite aggregate prepared thereby29 Sep 2022US 2022/0306839 A1Apollo Tyres Ltd
- Method for fabrication of glass preform18 Feb 2021US 2021/0047223 A1Sterlite Technologies Limited
- Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass27 Dec 2018US 2018/0370835 A1Heraeus Quarzglas GmbH & Co.KG
- Silicon oxide material for nonaqueous electrolyte secondary battery negative electrode material, making method, negative electrode, lithium ion secondary battery, and electrochemical capacitor10 Oct 2013US 2013/0266500 A1Shin-Etsu Chemical Co., Ltd.
- Silicon oxide material for nonaqueous electrolyte secondary battery negative electrode material, making method, negative electrode, lithium ion secondary battery, and electrochemical capacitor24 Nov 2011US 2011/0287313 A1
Most cited
By later US patents
- Process for converting silicon-and-fluorine-containing waste gases into silicon dioxide and hydrogen fluoride17US 3,969,485 A1976
- Process for the production of high purity silica from waste by-product silica and hydrogen fluoride14US 5,853,685 A1998
- Method of producing hydrogen fluoride and silicon dioxide from silicon tetra-fluoride10US 4,206,189 A1980
- Process and apparatus for preparing finely-divided silicon dioxide having good thixotropic properties10US 4,559,218 A1985
- Process for manufacture of anhydrous hydrogen fluoride and finely divided silica from fluosilicic acid7US 4,144,158 AAllied Chemical Corporation · 1979