C04B 14/104
Bentonite
Official title: {Bentonite, e.g. montmorillonite}
C04B14/104 (Bentonite) appears on 64 US grants and 72 published applications in this corpus.
Search patents in C04B- Granted patents
- 64
- Published applications
- 72
- Assignees
- 66
- Inventors
- 259
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 3 |
| 2019 | 2 | 6 |
| 2020 | 3 | 5 |
| 2021 | 6 | 5 |
| 2022 | 1 | 8 |
| 2023 | 6 | 11 |
| 2024 | 10 | 7 |
| 2025 | 7 | 5 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Double-liquid grouting slurry, its technology and application for super large diameter underwater shield engineering under high water pressure condition22 Sep 2026US 12,741,910 B2China Railway 14th Bureau Group Corporation Limited
- Reinforced composite materials, and methods of making the same7 Jul 2026US 12,674,320 B2The Penn State Research Foundation
- Functionalized silica aerogel powder and preparation method thereof, aerogel slurry and preparation method and use thereof14 Apr 2026US 12,600,639 B2Skyboys (Hangzhou) Technology Co., Ltd
- Cement slurry compositions comprising pozzolanic cement additives and methods for improving development of compressive strengths in the cement slurry compositions24 Feb 2026US 12,559,663 B2Schlumberger Technology Corporation
- Cement compositions including volcanic ash16 Dec 2025US 12,497,552 B2Saudi Arabian Oil Company
- Rapid-set construction material for 3d printing of sustainable infrastructure8 Oct 2026US 2026/0307293 A1Oregon State University
- Use of a marl for the preparation of a pozzolanic material24 Sep 2026US 2026/0285755 A1Vicat
- Stable and Self-Leveling Bonded Seal30 Jul 2026US 2026/0217615 A1Knauf Gips KG
- Fluid loss control for geopolymer system30 Jul 2026US 2026/0218035 A1Schlumberger Technology Corporation
- Magnesium phosphate-based cement grouting material, preparation method therefor and use thereof25 Jun 2026US 2026/0176206 A1Wuhan University of Technology
Most cited
By later US patents
- Laminated waterstop using bentonite and bentones50US 5,376,429 AParamount Technical Products, Inc. · 1994
- Method of temporarily inhibiting the swellability of water swellable clays and compositions46US 4,624,982 AAmerican Colloid Company · 1986
- Cement composition45US 5,989,336 AAtlantic Richfield Company · 1999
- Treating wells to mitigate flow-after-cementing43US 4,235,291 AMobil Oil Corporation · 1980
- Admixture and method for optimizing addition of EO/PO superplasticizer to concrete containing smectite clay-containing aggregates41US 6,352,952 B1W. R. Grace & Co.-Conn. · 2002