C01B 33/141
Preparation of hydrosols or aqueous dispersions
C01B33/141 (Preparation of hydrosols or aqueous dispersions) appears on 242 US grants and 277 published applications in this corpus.
Search patents in C01B- Granted patents
- 242
- Published applications
- 277
- Assignees
- 147
- Inventors
- 646
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 9 | 5 |
| 2003 | 4 | 7 |
| 2004 | 6 | 5 |
| 2005 | 1 | 6 |
| 2006 | 1 | 10 |
| 2007 | 2 | 11 |
| 2008 | 0 | 13 |
| 2009 | 7 | 11 |
| 2010 | 9 | 15 |
| 2011 | 16 | 18 |
| 2012 | 5 | 12 |
| 2013 | 9 | 6 |
| 2014 | 6 | 9 |
| 2015 | 9 | 11 |
| 2016 | 10 | 10 |
| 2017 | 10 | 4 |
| 2018 | 10 | 11 |
| 2019 | 8 | 11 |
| 2020 | 11 | 12 |
| 2021 | 6 | 13 |
| 2022 | 9 | 19 |
| 2023 | 5 | 11 |
| 2024 | 14 | 15 |
| 2025 | 15 | 21 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of preparing high-concentration colloidal silica29 Sep 2026US 12,747,161 B2Korea Institute of Science and Technology
- Method for manufacturing abrasive grains, composition for chemical mechanical polishing, and method for chemical mechanical polishing2 Jun 2026US 12,644,015 B2Jsr Corporation
- Aerogel compositions and methods19 May 2026US 12,630,432 B2Aspen Aerogels, Inc.
- Sol application methods12 May 2026US 12,623,197 B2Green Sol-Gel Ltd.
- Method for manufacturing silica sol21 Apr 2026US 12,606,444 B2Fujimi Incorporated
- Method for producing silica sol and silica sol24 Sep 2026US 2026/0285695 A1Fujimi Incorporated
- Method for preparing silica aerogel blanket17 Sep 2026US 2026/0274689 A1LG Chem.Ltd.
- Aerogel compositions and methods17 Sep 2026US 2026/0274690 A1Aspen Aerogels, Inc.
- Non-Spherical Colloidal Silica, Preparation Method and Use thereof25 Jun 2026US 2026/0176146 A1Zhejiang Xinchuangna Electronic Technology CO.,LTD.
- Batch Process For Silica Generation16 Apr 2026US 2026/0103386 A1
Most cited
By later US patents
- Polysilicate microgels as retention/drainage aids in papermaking126US 4,954,220 AE. I. Du Pont de Nemours and Company · 1990
- Low sodium, low metals silica polishing slurries118US 5,230,833 ANalco Chemical Company · 1993
- Method for preparing elongated-shaped silica sol73US 5,597,512 ANissan Chemical Industries, Ltd. · 1997
- Silica sols and use of the sols57US 5,603,805 AEka Nobel AB · 1997
- Method for preparing low-concentration polysilicate microgels48US 5,503,820 AE. I. Du Pont de Nemours and Company · 1996