B28C 1/00
Apparatus or methods for obtaining or processing clay
Official title: Apparatus or methods for obtaining or processing clay (filtration in general B01D; separation of solids from solids B03, B07; chemical part C04B; by mining or quarrying E21C41/16, E21C41/26, E21C47/10)
B28C1/00 (Apparatus or methods for obtaining or processing clay) appears on 75 US grants and 45 published applications in this corpus.
Search patents in B28C- Granted patents
- 75
- Published applications
- 45
- Assignees
- 58
- Inventors
- 177
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 4 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 3 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 3 | 4 |
| 2016 | 8 | 2 |
| 2017 | 3 | 4 |
| 2018 | 2 | 1 |
| 2019 | 0 | 5 |
| 2020 | 2 | 3 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Homogenizing method and device for mixing cow dung granules into clay bricks5 May 2026US 12,617,124 B2
- Cement supply control systems and methods3 Jun 2025US 12,318,965 B2Halliburton Energy Services.Inc.
- Method and device for producing ceramic formed body16 Jul 2024US 12,036,697 B2NGK Insulators, Ltd.
- Phase inversion pore-forming agent and pore-forming method for fly ash-based ceramic flat membrane support21 May 2024US 11,987,530 B1Central South University
- Ceramic glaze mixer control5 Sep 2023US 11,746,040 B2
- Method and system for preparing ceramic raw material9 Jul 2026US 2026/0193138 A1NGK Insulators, Ltd.
- Method of production of a grout and a grouting method17 Jul 2025US 2025/0230093 A1
- Use of industrial waste clays for the manufacture of a supplementary cementitious material (scm) and method for its manufacture22 May 2025US 2025/0162940 A1Cementos Argos S.A.
- Method and device for mixing gypsum granules derived from waste gypsum board and gypsum slurry15 Aug 2024US 2024/0269889 A1Tokuyama Corporation
- Homogenizing method and device for mixing cow dung granules into clay bricks8 Feb 2024US 2024/0042648 A1Inner Mongolia University of Technology
Most cited
By later US patents
- High intensity conditioning mill and method53US 4,483,624 AFreeport Kaolin Company · 1984
- Method of treating clay to improve its whiteness22US 4,492,628 AFreeport Kaolin Company · 1985
- Method of concentrating slurried kaolin22US 4,687,546 AGeorgia Kaolin Company, Inc. · 1987
- Energy conserving process for drying a clay slurry18US 4,642,904 AGeorgia Krolin Company, Inc. · 1987
- Process for producing a kaolin clay product16US 5,223,463 AECC International Limited · 1993