C01B 33/325
After-treatment
Official title: {After-treatment, e.g. purification or stabilisation of solutions, granulation; Dissolution; Obtaining solid silicate, e.g. from a solution by spray-drying, flashing off water or adding a coagulant}
C01B33/325 (After-treatment) appears on 87 US grants and 73 published applications in this corpus.
Search patents in C01B- Granted patents
- 87
- Published applications
- 73
- Assignees
- 74
- Inventors
- 226
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 3 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 4 |
| 2019 | 1 | 8 |
| 2020 | 4 | 6 |
| 2021 | 7 | 6 |
| 2022 | 6 | 6 |
| 2023 | 5 | 6 |
| 2024 | 2 | 9 |
| 2025 | 3 | 10 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lithium-doped silicon-based negative electrode active material, method of producing the same, method of post-treating the same, and negative electrode and secondary battery including the same15 Sep 2026US 12,738,494 B2SK On Co., Ltd.
- Curable composition containing rice husk ash biosilica toughened epoxy resin30 Jun 2026US 12,668,682 B2Najran University
- Collector composition25 Nov 2025US 12,478,982 B2BASF SE
- Silicon-based agricultural compositions19 Aug 2025US 12,391,629 B2BiolóGicos EstratéGicos Bioest S.A.S.
- Process of obtaining powdered sodium silicate from sand tailings originated from the iron ore concentration process29 Apr 2025US 12,286,357 B2Vale S.A.
- Lithium-doped silicon-based negative electrode active material, method of producing the same, method of post-treating the same, and negative electrode and secondary battery including the same8 Oct 2026US 2026/0312045 A1SK On Co., Ltd.
- Method of producing alkali metal silicate with reduced metal levels17 Sep 2026US 2026/0274693 A1Evonik Operations GmbH
- Bio-based curable epoxy composition17 Sep 2026US 2026/0275083 A1Najran University
- Spherical calcium silicate10 Sep 2026US 2026/0265069 A1Evonik Operations GmbH
- Method of recycling silicon components3 Sep 2026US 2026/0257925 A1Flaxtec GmbH
Most cited
By later US patents
- Silicate-based builders and their use in detergents and multicomponent mixtures for use in this field47US 5,780,420 AHenkel Kommanditgesselschaft auf Aktien · 1998
- Process for producing crystalline sodium silicates having a layered structure37US 5,236,682 AHoechst Aktiengesellschaft · 1993
- Rapidly dissolvable silicates and methods of using the same32US 4,466,831 AHalliburton Company · 1984
- Methods for forming porous materials30US 9,780,361 B2GM Global Technology Operations LLC · 2017
- Method for controlled gelation of silicates28US 7,926,567 B2Cleansorb Limited · 2011