C04B 40/0231
Carbon dioxide hardening
Official title: {Carbon dioxide hardening}
C04B40/0231 (Carbon dioxide hardening) appears on 136 US grants and 191 published applications in this corpus.
Search patents in C04B- Granted patents
- 136
- Published applications
- 191
- Assignees
- 103
- Inventors
- 410
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 4 | 7 |
| 2015 | 2 | 5 |
| 2016 | 3 | 9 |
| 2017 | 2 | 9 |
| 2018 | 8 | 11 |
| 2019 | 6 | 7 |
| 2020 | 10 | 13 |
| 2021 | 4 | 13 |
| 2022 | 13 | 19 |
| 2023 | 14 | 25 |
| 2024 | 14 | 33 |
| 2025 | 19 | 23 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compositions and methods relating to increased carbon dioxide uptake in mixing and curing of concrete5 May 2026US 12,617,717 B2Saudi Arabian Oil Company
- Method for making carbonated precast concrete products with enhanced durability5 May 2026US 12,617,725 B2Carbicrete Inc.
- In-situ high-strength gradient carbonized material and preparation method thereof28 Apr 2026US 12,612,332 B2Wuhan University of Technology
- Nano-titanium dioxide/biochar composite, and preparation method and use thereof21 Apr 2026US 12,606,485 B2Quingdao University of Technology
- Method for preparing concrete based on GGBS, silicon-aluminum compounds and CO2 waste gas21 Apr 2026US 12,606,487 B2Shandong University
- Method and apparatus for binding carbon dioxide, obtained product and use thereof1 Oct 2026US 2026/0296982 A1Carbonaide Oy
- Material preparation systems and related devices and methods of preparing cementitious materials27 Aug 2026US 2026/0250209 A1Saudi Arabian Oil Company
- Production of Metal Carbonate Soil Amendment from Calcium Slag Silicate20 Aug 2026US 2026/0242303 A1Sabic Agri-Nutrients Company
- Mould for curing a precursor by carbonation30 Jul 2026US 2026/0216916 A1Vito NV
- Multi-nozzle automated additive spraying and methods of additive spraying to form carbon dioxide-infused fiber-reinforced concrete2 Jul 2026US 2026/0185367 A1The Regents of the University of Michigan
Most cited
By later US patents
- Method for the manufacture of concrete and like products102US 4,093,690 AU.S. Terrazzo Panels, Inc. · 1978
- Method and apparatus for curing concrete products99US 4,427,610 AConger/Murray Systems, Inc. · 1984
- Method of casting concrete89US 4,362,679 A1982
- Cement composition85US 4,069,063 AWestvaco Corporation · 1978
- Cement mixtures with alkali-intolerant matter and method83US 5,690,729 AMaterials Technology Corporation · 1997