C01B 33/1415
By suspending finely divided silica in water
Official title: {by suspending finely divided silica in water}
C01B33/1415 (By suspending finely divided silica in water) appears on 74 US grants and 77 published applications in this corpus.
Search patents in C01B- Granted patents
- 74
- Published applications
- 77
- Assignees
- 49
- Inventors
- 216
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 3 |
| 2003 | 1 | 2 |
| 2004 | 4 | 3 |
| 2005 | 1 | 1 |
| 2006 | 1 | 5 |
| 2007 | 1 | 1 |
| 2008 | 0 | 7 |
| 2009 | 4 | 1 |
| 2010 | 4 | 7 |
| 2011 | 7 | 8 |
| 2012 | 3 | 5 |
| 2013 | 2 | 1 |
| 2014 | 1 | 3 |
| 2015 | 2 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 5 |
| 2020 | 4 | 2 |
| 2021 | 3 | 2 |
| 2022 | 2 | 6 |
| 2023 | 0 | 0 |
| 2024 | 3 | 5 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Silica with reduced tribo-charge for toner applications20 Jan 2026US 12,528,704 B2Evonik Operations GmbH
- Aqueous hydrophobic silica dispersions21 Jan 2025US 12,202,732 B2Cabot Corporation
- Exfoliated layer dispersion of layered compound, and transparent substrate using same17 Sep 2024US 12,091,555 B2Nissan Chemical Corporation
- Supercritical drying method for silica wet gel blanket13 Aug 2024US 12,060,279 B2LG Chem.Ltd.
- Aqueous hydrophobic silica dispersions21 May 2024US 11,987,501 B2Cabot Corporation
- Method for producing hydrophobic silica aerogel blanket, and silica aerogel blanket2 Apr 2026US 2026/0091981 A1LG Chem.Ltd.
- Method for producing hydrophobic silica aerogel blanket, and silica aerogel blanket4 Dec 2025US 2025/0368518 A1LG Chem.Ltd.
- Supercritical drying method for silica wet gel blanket31 Oct 2024US 2024/0359994 A1LG Chem.Ltd.
- Method for producing silica particles, silica particles produced by such method, compositions and uses of such silica particles24 Oct 2024US 2024/0351889 A1Merck Patent GmbH
- Aqueous Hydrophobic Silica Dispersions8 Aug 2024US 2024/0262699 A1Cabot Corporation
Most cited
By later US patents
- Aqueous dispersion of a hydrophobic silica40US 4,274,883 ADeutsche Gold- und Silber-Scheideanstalt vormals Roessler · 1981
- Aqueous dispersion, a process for the preparation and the use thereof34US 6,676,719 B2Degussa AG · 2004
- Aqueous colloidal dispersion of fumed silica, acid and stabilizer30US 5,246,624 ACabot Corporation · 1993
- High solids aqueous silica slurry27US 5,030,286 APPG Industries, Inc. · 1991
- Aqueous dispersion of hydrophobized silicon dioxide powder comprising a dispersing agent26US 7,645,335 B2Degussa AG · 2010