C01B 33/128
By acidic treatment of aqueous silicate solutions
Official title: {by acidic treatment of aqueous silicate solutions}
C01B33/128 (By acidic treatment of aqueous silicate solutions) appears on 45 US grants and 53 published applications in this corpus.
Search patents in C01B- Granted patents
- 45
- Published applications
- 53
- Assignees
- 32
- Inventors
- 111
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 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 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 6 |
| 2015 | 2 | 13 |
| 2016 | 2 | 4 |
| 2017 | 6 | 2 |
| 2018 | 8 | 2 |
| 2019 | 3 | 0 |
| 2020 | 2 | 1 |
| 2021 | 2 | 3 |
| 2022 | 0 | 4 |
| 2023 | 5 | 3 |
| 2024 | 1 | 2 |
| 2025 | 2 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mesoporous silica manufactured in the presence of water-soluble ODSO21 Apr 2026US 12,606,447 B2Saudi Arabian Oil Company
- Acid wash of red mud (bauxite residue)20 Jan 2026US 12,528,709 B2Worcester Polytechnic Institute
- Method for manufacture of mesoporous silica in the presence of thermally expandable microcells27 May 2025US 12,312,244 B2Saudi Arabian Oil Company
- Spherical stannous compatible silica particles for reduced RDA4 Feb 2025US 12,215,034 B2Evonik Operations GmbH
- Process for extracting lithium, aluminum, and silicon materials from a hard rock source17 Sep 2024US 12,091,727 B2
- Method for producing cation-modified silica and cation-modified silica dispersion liquid1 Oct 2026US 2026/0296901 A1
- Porous silica-clay composite material, water purifying agent containing porous silica-clay composite material, soil treatment powder containing porous silica-clay composite material, and method of producing porous silica-clay composite material11 Sep 2025US 2025/0282628 A1Nikon Corporation
- Method for manufacture of mesoporous silica in the presence of thermally expandable microcells24 Jul 2025US 2025/0236525 A1Saudi Arabian Oil Company
- Precipitated Silica and Process for Its Manufacture22 May 2025US 2025/0162887 A1Rhodia Operations
- Process for the preparation of silicate from a plant ash comprising crystalline silica using a salt containing a multivalent anion16 May 2024US 2024/0158244 A1Rhodia Operations
Most cited
By later US patents
- Dentifrice-compatible silica particulates28US 5,286,478 ARhone-Poulenc Chimie · 1994
- Dentifrice-compatible silica particulates25US 5,616,316 ARhone-Poulenc Chimie · 1997
- Dentifrice-compatible silica particulates21US 5,614,176 ARhone-Poulenc Chimie · 1997
- Continuous silica production process and silica product prepared from same19US 8,609,068 B2J. M. Huber Corporation · 2013
- Dentifrice-compatible silica particulates18US 5,612,020 ARhone-Poulenc Chimie · 1997