C01B 33/186
From or via fluosilicic acid or salts thereof by a wet process
Official title: {from or via fluosilicic acid or salts thereof by a wet process}
C01B33/186 (From or via fluosilicic acid or salts thereof by a wet process) appears on 27 US grants and 6 published applications in this corpus.
Search patents in C01B- Granted patents
- 27
- Published applications
- 6
- Assignees
- 22
- Inventors
- 54
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for preparing calcium fluoride from fluosilicic acid16 Jan 2024US 11,873,229 B2Ocp SA
- High purity synthetic fluorite, process for preparing the same and apparatus therefor26 Dec 2023US 11,851,341 B2Fluorsid S.P.A.
- Surface-treated silica filler, and resin composition containing surface-treated silica filler27 Jul 2021US 11,072,710 B2Namics Corporation
- Process for the preparation of pure silica19 May 2009US 7,534,411 B2STI Silicon Technologies Israel Ltd.
- Process for producing high-purity silica by reacting crude silica with ammonium fluoride17 Oct 1995US 5,458,864 ANissan Chemical Industries, Ltd.
- Porous spherical silica, catalyst carrier, cosmetic, analytical column, polish, resin composition, and method of producing porous spherical silica29 May 2025US 2025/0171319 A1Tokuyama Corporation
- Surface-treated silica filler, and resin composition containing surface-treated silica filler7 Nov 2019US 2019/0338138 A1Namics Corporation
- Process For Preparing Calcium Fluoride From Fluosilicic Acid7 Jun 2018US 2018/0155207 A1Ocp SA
- High purity synthetic fluorite, process for preparing the same and apparatus therefor19 Apr 2018US 2018/0105433 A1Fluorsid S.P.A.
- Electrodeposition process for the manufacture of an electrode for a metial-ion battery19 Jun 2014US 2014/0170303 A1Nexeon Limited
Most cited
By later US patents
- Silica particles and process for producing the same28US 5,230,953 ANissan Chemical Industries, Ltd. · 1993
- Process for producing high-purity silica by reacting crude silica with ammonium fluoride28US 5,458,864 ANissan Chemical Industries, Ltd. · 1995
- Process for producing high-purity silica by reacting crude silica with ammonium fluoride23US 5,266,289 ANissan Chemical Industries, Ltd. · 1993
- Filler for heat-sensitive recording paper and process for producing the same19US 5,064,473 ANissan Chemical Industries, Ltd. · 1991
- Method of production of high purity fusible silica17US 5,028,407 AInternational Minerals & Chemical Corp. · 1991