C04B 7/22
Iron ore cements
Official title: Iron ore cements {; Iron rich cements, e.g. Ferrari cements, Kühl cements}
C04B7/22 (Iron ore cements) appears on 5 US grants and 8 published applications in this corpus.
Search patents in C04B- Granted patents
- 5
- Published applications
- 8
- Assignees
- 9
- Inventors
- 26
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Metal-cement based concretes and methods for making same15 Jul 2025US 12,358,838 B2
- Method for making aluminate cement21 Dec 2004US 6,833,105 B2Carrieres du Boulonnais
- Process for manufacturing of high iron hydraulic cement clinker22 Jun 2004US 6,752,865 B2Council of Scientific and Industrial Research
- Method for producing cast-in-place flexible joined-together constructional structures and buildings9 Feb 1999US 5,868,894 A
- High iron oxide hydraulic cement19 Jul 1977US 4,036,657 AThe Reagents of the University of California
- Cement compositions and methods of making the same from waste27 Aug 2026US 2026/0250190 A1The Board of Trustees of The University of Alabama
- Method for thermal activation of coal gangue and in-situ carbon fixation utilizing waste heat from steel slag11 Dec 2025US 2025/0376416 A1Taiyuan University of Technology
- Method of producing clay activated/calcined with calcium aluminoferrite or calcium ferrite and clay composition obtained by the method11 Jul 2024US 2024/0228374 A1Fct Holdings Pty Ltd
- Alkaline activated cement methods and compositions15 Feb 2024US 2024/0051874 A1Material. Evolution Ltd.
- Metal-Cement Based Concretes and Methods for Making Same4 May 2023US 2023/0139550 A1
Most cited
By later US patents
- Method for producing cast-in-place flexible joined-together constructional structures and buildings9US 5,868,894 A1999
- High iron oxide hydraulic cement8US 4,036,657 AThe Reagents of the University of California · 1977
- Process for manufacturing of high iron hydraulic cement clinker5US 6,752,865 B2Council of Scientific and Industrial Research · 2004
- Method for making aluminate cement1US 6,833,105 B2Carrieres du Boulonnais · 2004