C04B 22/008
Cement and like inorganic materials added as expanding or shrinkage compensating ingredients
Official title: {Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation (mixtures of cements C04B7/00, C04B28/00)}
C04B22/008 (Cement and like inorganic materials added as expanding or shrinkage compensating ingredients) appears on 39 US grants and 39 published applications in this corpus.
Search patents in C04B- Granted patents
- 39
- Published applications
- 39
- Assignees
- 33
- Inventors
- 90
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 3 |
| 2016 | 4 | 3 |
| 2017 | 0 | 3 |
| 2018 | 2 | 4 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 2 | 4 |
| 2024 | 2 | 2 |
| 2025 | 3 | 1 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for sealing a well using controlled hydration expansion of a smectite-containing clay mineral14 Apr 2026US 12,600,895 B2
- Compositions and methods for well cementing17 Mar 2026US 12,577,449 B2Schlumberger Technology Corporation
- Cement admixture, expansion material, and cement composition5 Aug 2025US 12,378,161 B2Denka Company Limited
- Compositions and methods for well cementing10 Jun 2025US 12,325,822 B2Schlumberger Technology Corporation
- Low-density high-strength concrete and related methods27 May 2025US 12,312,272 B2Sebastos Technologies Inc.
- Composition and treatment method thereof for 3d pringting material8 Oct 2026US 2026/0308063 A1Nano and Advanced Materials Institute Limited
- Multi-layered cementitious composition prefabricated prismatic member27 Aug 2026US 2026/0249589 A1
- Compositions and methods for well cementing23 Jul 2026US 2026/0209594 A1Schlumberger Technology Corporation
- Concrete composition for water treatment structure having self-healing and waterproofing capabilities by using self-healing admixture and concrete water treatment structure using same28 May 2026US 2026/0146000 A1HUBCON Co., Ltd.
- Methods for the control of shrinkage of cementitious compositions and cementitious grouts having controlled shrinkage26 Feb 2026US 2026/0055028 A1Sika Technology AG
Most cited
By later US patents
- Hydrated high alumina cement33US 5,741,357 A1998
- Crack inhibitor for tape joint compositions19US 5,334,243 AThe Dow Chemical Company · 1994
- Shrinkage-compensating concrete13US 5,846,316 A1998
- Expanding additive for cement composition13US 5,942,031 ANalco/Exxon Energy Chemicals, L. P. · 1999
- Method for producing and using a cement-type binding material12US 4,971,627 AKalkwerke Rheine GmbH · 1990