C04B 7/28
From combustion residues
Official title: from combustion residues, {e.g. ashes or slags from waste incineration}({C04B7/243} , C04B7/26 take precedence)
C04B7/28 (From combustion residues) appears on 59 US grants and 63 published applications in this corpus.
Search patents in C04B- Granted patents
- 59
- Published applications
- 63
- Assignees
- 48
- Inventors
- 162
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 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 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 6 | 3 |
| 2014 | 4 | 9 |
| 2015 | 6 | 2 |
| 2016 | 3 | 2 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 5 | 1 |
| 2020 | 1 | 6 |
| 2021 | 3 | 4 |
| 2022 | 2 | 6 |
| 2023 | 4 | 6 |
| 2024 | 3 | 4 |
| 2025 | 1 | 4 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Low-cost four-element system cementitious material, preparation method and application thereof6 Oct 2026US 12,753,115 B2University of Science and Technology Beijing
- Agricultural waste ash as cementitious material and methods of making the same31 Mar 2026US 12,590,031 B2Colorado State University Research Foundation
- Method of producing cement clinker and a second calcined material17 Mar 2026US 12,577,156 B2Amrize Technology Switzerland LLC
- Concrete compositions and apparatuses employing the same13 Jan 2026US 12,522,535 B2Lehigh University
- Compositions and methods for making blended supplementary cementitious materials7 Oct 2025US 12,435,000 B2Roman Cement, LLC
- High-voltage depletion-mode current source, transistor, and fabrication methods20 Aug 2026US 2026/0242281 A1Texas Instruments Incorporated
- Method for preparing cement clinker under oxygen-rich combustion condition and cement material19 Mar 2026US 2026/0078054 A1Cbmi Construction Co., Ltd.
- Blended particulate compositions29 Jan 2026US 2026/0028272 A1Roman Cement, LLC
- Method of Forming Pozzolan from Coal Refuse22 Jan 2026US 2026/0022062 A1
- Method of upgrading industrial furnace by-products11 Dec 2025US 2025/0376741 A1Magsort Oy
Most cited
By later US patents
- Portland cement for SO.sub.2 control in coal-fired power plants83US 4,555,392 AThe United States of America as represented by the United States Department of Energy · 1985
- Cementitious composition containing bottom ash as pozzolan and concretes and mortars therefrom45US 5,849,075 ALafarge Canada Inc. · 1998
- Methods of making cementitious compositions from waste products39US 4,756,761 AO'Okiep Copper Company Limited · 1988
- Process for converting coal ash slag into portland cement32US 4,174,974 AStandard Oil Company (Indiana) · 1979
- Narrow PSD hydraulic cement, cement-SCM blends, and methods for making same25US 8,414,700 B2Roman Cement, LLC · 2013