C04B 28/06
Aluminous cements
Official title: Aluminous cements (monolithic refractories or refractory mortars C04B35/66)
C04B28/06 (Aluminous cements) appears on 716 US grants and 823 published applications in this corpus.
Search patents in C04B- Granted patents
- 716
- Published applications
- 823
- Assignees
- 430
- Inventors
- 1,840
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 14 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 1 |
| 2002 | 4 | 7 |
| 2003 | 7 | 12 |
| 2004 | 11 | 20 |
| 2005 | 8 | 12 |
| 2006 | 5 | 17 |
| 2007 | 11 | 14 |
| 2008 | 14 | 19 |
| 2009 | 7 | 23 |
| 2010 | 17 | 15 |
| 2011 | 13 | 17 |
| 2012 | 14 | 24 |
| 2013 | 11 | 34 |
| 2014 | 24 | 40 |
| 2015 | 24 | 38 |
| 2016 | 33 | 40 |
| 2017 | 31 | 40 |
| 2018 | 28 | 46 |
| 2019 | 50 | 52 |
| 2020 | 38 | 40 |
| 2021 | 36 | 44 |
| 2022 | 28 | 74 |
| 2023 | 26 | 48 |
| 2024 | 42 | 68 |
| 2025 | 37 | 50 |
| 2026 | 21 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Light weight ceramic aggregates made by agglomerating ceramic fibers22 Sep 2026US 12,741,908 B2Unifrax I LLC
- Method for treating soil contaminated with hydrocarbons, in particular with polycyclic aromatic hydrocarbons15 Sep 2026US 12,734,567 B2Amrize Technology Switzerland LLC
- Composition for insulating coating8 Sep 2026US 12,729,159 B2Saint-Gobain Isover
- Dry cementitious material mixture for 3D-printing25 Aug 2026US 12,715,813 B2Holcim Technology Ltd
- Flexible composite25 Aug 2026US 12,716,020 B2Concrete Canvas Technology Ltd.
- 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
- Production of low carbon hydraulic cement and concrete10 Sep 2026US 2026/0265142 A1
- Multi-layered cementitious composition prefabricated prismatic member27 Aug 2026US 2026/0249589 A1
Most cited
By later US patents
- High temperature wellbore cement slurry319US 5,226,961 AShell Oil Company · 1993
- Light weight high temperature well cement compositions and methods273US 6,488,763 B2Halliburton Energy Services.Inc. · 2002
- Light weight high temperature well cement compositions and methods187US 6,143,069 AHalliburton Energy Services.Inc. · 2000
- Light weight high temperature well cement compositions and methods183US 5,900,053 AHalliburton Energy Services.Inc. · 1999
- Cementing oil and gas wells using converted drilling fluid181US 4,883,125 AAtlantic Richfield Company · 1989