C04B 2235/349
Clays
Official title: Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
C04B2235/349 (Clays) appears on 601 US grants and 815 published applications in this corpus.
Search patents in C04B- Granted patents
- 601
- Published applications
- 815
- Assignees
- 364
- Inventors
- 1,459
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 8 |
| 2003 | 6 | 25 |
| 2004 | 13 | 27 |
| 2005 | 10 | 24 |
| 2006 | 13 | 32 |
| 2007 | 10 | 26 |
| 2008 | 12 | 35 |
| 2009 | 12 | 46 |
| 2010 | 25 | 33 |
| 2011 | 26 | 41 |
| 2012 | 27 | 31 |
| 2013 | 32 | 33 |
| 2014 | 33 | 45 |
| 2015 | 38 | 42 |
| 2016 | 45 | 42 |
| 2017 | 25 | 46 |
| 2018 | 33 | 30 |
| 2019 | 30 | 41 |
| 2020 | 24 | 41 |
| 2021 | 24 | 44 |
| 2022 | 30 | 25 |
| 2023 | 21 | 33 |
| 2024 | 21 | 26 |
| 2025 | 22 | 15 |
| 2026 | 14 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biochar for stable solidification of heavy metals8 Sep 2026US 12,729,162 B2Chinese Research Academy of Environmental Sciences
- High filtration efficiency particulate filters having bimodal pore size distribution made from beads with open porosity11 Aug 2026US 12,702,946 B2Corning Incorporated
- Nanoporous ceramic for atomization core and preparation method thereof11 Aug 2026US 12,703,664 B2Huizhou Happy Vaping Technology Limited
- Moisture regulating material and production method thereof7 Jul 2026US 12,673,899 B2
- Nanomaterial ceramic spheres, preparation method, and application thereof16 Jun 2026US 12,655,062 B2
- Nanomaterial ceramic sphere, preparation method and application thereof24 Sep 2026US 2026/0285761 A1
- Pottery base material17 Sep 2026US 2026/0274752 A1Toto Ltd.
- Sheet, sealing material, fuel cell, electrolytic cell, method for producing sheet, and method for producing sealing material3 Sep 2026US 2026/0258290 A1Nichias Corporation
- Colourable translucent white ceramic compound based on a frit comprising calcium and sodium27 Aug 2026US 2026/0250203 A1TheSize Surfaces, S.L.
- Process for cold sintering of calcium carbonate for precast construction materials20 Aug 2026US 2026/0242290 A1The Penn State Research Foundation
Most cited
By later US patents
- Insulating shaped articles comprising inorganic fibrous matrices and xanthan gum/cationic starch binders79US 5,290,350 ARhone-Poulenc Chimie · 1994
- Fabrication of ultra-thinwall cordierite structures76US 6,506,336 B1Corning Incorporated · 2003
- Aluminosilicate hydrogel bonded aggregate articles62US 4,432,798 AThe Duriron Company, Inc. · 1984
- Cordierite ceramic body and method58US 6,864,198 B2Corning Incorporated · 2005
- Porous honeycomb filter and manufacturing method thereof56US 6,773,481 B2NGK Insulators, Ltd. · 2004