C04B 7/4446
The fuel being treated in a separate gasifying or decomposing chamber
Official title: {the fuel being treated in a separate gasifying or decomposing chamber, e.g. a separate combustion chamber}
C04B7/4446 (The fuel being treated in a separate gasifying or decomposing chamber) appears on 34 US grants and 35 published applications in this corpus.
Search patents in C04B- Granted patents
- 34
- Published applications
- 35
- Assignees
- 31
- Inventors
- 100
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 4 | 3 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 1 |
| 2018 | 3 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for thermally treatment of air-dispersible raw material3 Feb 2026US 12,540,098 B2thyssenkrupp AG
- Method and apparatus for conveying hot calcined raw meal14 Oct 2025US 12,441,558 B2Alite GmbH
- Organic sludge treatment device and treatment method28 Feb 2023US 11,591,246 B2Taiheia Aement Corporation
- U-shaped seal and method for use in cement plants2 Mar 2021US 10,935,319 B2FLSmidth A/S
- Method for operating a plant for producing cement19 Nov 2019US 10,479,727 B2KHD Humbolt Wedag GmbH
- Method and apparatus for incineration of combustible waste during the manufacture of cement clinker26 Feb 2026US 2026/0055025 A1FLSmidth Cement A/S
- Method and apparatus for conveying hot calcined raw meal16 Jan 2025US 2025/0019186 A1Alite GmbH
- Waste-to-energy production conjoined with portland cement production12 Dec 2024US 2024/0409459 A1
- System and method for thermally treatment of air-dispersible raw material11 Apr 2024US 2024/0116809 A1thyssenkrupp AG
- Systems and methods of carbon capture from cement production process22 Jun 2023US 2023/0192543 A1
Most cited
By later US patents
- Method and apparatus for the removal of harmful and waste materials by combustion47US 4,640,681 AKlockner-Humboldt-Deutz Aktiengesellschaft · 1987
- Process for the disposal of combustible refuses32US 4,678,514 ADyckerhoff Engineering GmbH · 1987
- Pyrolyzer-kiln system30US 5,040,972 ASystech Environmental Corporation · 1991
- Method and apparatus for utilizing the heat energy of domestic and commercial refuse26US 4,797,091 AKrupp Polysius AG · 1989
- Process for making cement using low-grade fuels23US 5,336,317 AMetallgesellschaft Aktiengesellschaft · 1994