C04B 28/065
Calcium aluminosulfate cements
Official title: {Calcium aluminosulfate cements, e.g. cements hydrating into ettringite}
C04B28/065 (Calcium aluminosulfate cements) appears on 249 US grants and 338 published applications in this corpus.
Search patents in C04B- Granted patents
- 249
- Published applications
- 338
- Assignees
- 178
- Inventors
- 824
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 2 |
| 2004 | 4 | 3 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 3 | 3 |
| 2011 | 2 | 6 |
| 2012 | 5 | 9 |
| 2013 | 4 | 8 |
| 2014 | 6 | 17 |
| 2015 | 12 | 18 |
| 2016 | 12 | 14 |
| 2017 | 8 | 14 |
| 2018 | 10 | 17 |
| 2019 | 14 | 18 |
| 2020 | 16 | 21 |
| 2021 | 15 | 21 |
| 2022 | 11 | 46 |
| 2023 | 10 | 24 |
| 2024 | 20 | 39 |
| 2025 | 25 | 27 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for treating soil contaminated with hydrocarbons, in particular with polycyclic aromatic hydrocarbons15 Sep 2026US 12,734,567 B2Amrize Technology Switzerland LLC
- Flexible composite25 Aug 2026US 12,716,020 B2Concrete Canvas Technology Ltd.
- Hydraulic binder with low carbon footprint and high early strength18 Aug 2026US 12,709,575 B2ImerTech SAS
- Use of a naphthalenesulfonic acid polycondensate as a plasticizer in a construction composition and construction composition4 Aug 2026US 12,698,235 B2Construction Research & Technology GmbH
- Cementitious binders for geopolymer, geopolymers, and uses thereof4 Aug 2026US 12,698,236 B2Sika Technology AG
- Cementitous compositions for reducing efflorescence8 Oct 2026US 2026/0308051 A1Tremco Cpg Inc.
- Highly absorbent sponge concrete1 Oct 2026US 2026/0296973 A1Amrize Technology Switzerland LLC
- Highly absorbant mineral sponge17 Sep 2026US 2026/0274759 A1Amrize Technology Switerland LLC
- Multi-layered cementitious composition prefabricated prismatic member27 Aug 2026US 2026/0249589 A1
- Calcium sulfoaluminate (csa) cement clinker with calcium magnesium silicate2 Jul 2026US 2026/0184630 A1
Most cited
By later US patents
- Zeolite-based lightweight concrete products125US 5,494,513 ANational Research Council of Canada · 1996
- Alkali activated supersulphated binder123US 6,409,819 B1International Mineral Technology AG · 2002
- Activated aluminosilicate binder74US 6,572,698 B1International Mineral Technology AG · 2003
- Very fast setting cementitious composition with high early-age compressive strength69US 7,670,427 B2United States Gypsum Company · 2010
- Cement retarder and rapid hardening cement containing the same66US 4,190,454 ADenki Kagaku Kogyo Kabushiki Kaisha · 1980