C04B 33/131
Inorganic additives
Official title: {Inorganic additives}
C04B33/131 (Inorganic additives) appears on 61 US grants and 98 published applications in this corpus.
Search patents in C04B- Granted patents
- 61
- Published applications
- 98
- Assignees
- 79
- Inventors
- 267
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 4 | 3 |
| 2017 | 4 | 11 |
| 2018 | 6 | 9 |
| 2019 | 4 | 9 |
| 2020 | 8 | 15 |
| 2021 | 4 | 6 |
| 2022 | 9 | 9 |
| 2023 | 4 | 7 |
| 2024 | 2 | 10 |
| 2025 | 6 | 2 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Colourable translucent white ceramic compound based on a frit comprising calcium and sodium27 Aug 2026US 2026/0250203 A1TheSize Surfaces, S.L.
- Ceramics and methods of their manufacture30 Jul 2026US 2026/0217613 A1ImerTech SAS
Most cited
By later US patents
- Ceramic article and method of manufacture46US 8,475,946 B1Bowling Green State University · 2013
- High ratio silicate foundry sand binders18US 4,316,744 AE. I. Du Pont de Nemours and Company · 1982
- Method of manufacturing slabs of ceramic material12US 8,940,223 B22015
- Fast-firing ceramic composition and ceramic article made therefrom10US 3,941,604 AWestinghouse Electric Corp. · 1976
- Petroleum fracturing proppant prepared from flyash and waste ceramic, and preparation method thereof9US 9,611,423 B2Hebi Tianrui Petroleum Proppant Co., Ltd · 2017