C04B 7/246
From waste building materials
Official title: {from waste building materials, e.g. waste asbestos-cement products, demolition waste}
C04B7/246 (From waste building materials) appears on 12 US grants and 37 published applications in this corpus.
Search patents in C04B- Granted patents
- 12
- Published applications
- 37
- Assignees
- 31
- Inventors
- 99
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 3 |
| 2023 | 2 | 4 |
| 2024 | 1 | 6 |
| 2025 | 0 | 7 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of producing cement clinker and a second calcined material17 Mar 2026US 12,577,156 B2Amrize Technology Switzerland LLC
- Method and facility for producing material containing hydrated cement11 Jun 2024US 12,005,459 B2thyssenkrupp AG
- Method for modifying recycled fine powder of concrete and use thereof10 Oct 2023US 11,780,116 B2Anhui University of Science and Technology
- Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals8 Aug 2023US 11,718,558 B2Brimstone Energy Inc.
- Method for producing solidifying material for radioactive waste disposal via recycling of radioactive concrete and method for disposing of radioactive waste using the same16 Aug 2022US 11,417,438 B2Korea Institute of Civil Engineering and Building Technology
- Cement compositions and methods of making the same from waste27 Aug 2026US 2026/0250190 A1The Board of Trustees of The University of Alabama
- Method of producing cement clinker from a source of calcium sulfate11 Jun 2026US 2026/0159444 A1Amrize Technology Switzerland LLC
- Method for beneficiating recycled concrete aggregate and paste, and recycled concrete aggregate and recycled cementitious materials produced thereby5 Mar 2026US 2026/0061467 A1Urban Mining Industries, LLC
- Supplementary cementitious materials from recycled cement paste22 May 2025US 2025/0162936 A1HSustainability GmbH
- Use of industrial waste clays for the manufacture of a supplementary cementitious material (scm) and method for its manufacture22 May 2025US 2025/0162940 A1Cementos Argos S.A.
Most cited
By later US patents
- Composition and process for forming low permeability barriers for waste disposal sites30US 5,259,697 ABethlehem Steel Corporation · 1993
- Method for recycling building materials14US 6,439,139 B1Owens Corning Fiberglas Technology, Inc. · 2002
- Cement composition and process for producing cement composition9US 8,641,819 B2Ube Industries, Ltd. · 2014
- Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals6US 11,718,558 B2Brimstone Energy Inc. · 2023
- Method for recycling building materials5US 7,107,916 B2Owens Corning Fiberglas Technology, Inc. · 2006