C04B 7/365
By extracting part of the material from the process flow and returning
Official title: {by extracting part of the material from the process flow and returning it into the process after a separate treatment, e.g. in a separate retention unit under specific conditions}
C04B7/365 (By extracting part of the material from the process flow and returning) appears on 32 US grants and 38 published applications in this corpus.
Search patents in C04B- Granted patents
- 32
- Published applications
- 38
- Assignees
- 33
- Inventors
- 104
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 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 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 5 |
| 2013 | 1 | 3 |
| 2014 | 2 | 3 |
| 2015 | 6 | 1 |
| 2016 | 0 | 3 |
| 2017 | 3 | 3 |
| 2018 | 4 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 3 | 4 |
| 2024 | 2 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Cement firing facility and firing method20 Aug 2026US 2026/0242279 A1Sumitomo Osaka Cement Co., Ltd.
- Method for manufacturing cement clinker and cement plant20 Nov 2025US 2025/0353788 A1HSustainability GmbH
- Method and plant for treating raw-meal in a cement clinker manufacturing process29 May 2025US 2025/0171352 A1
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Most cited
By later US patents
- Method of purifying the exhaust gases from plants for the production of cement clinker19US 5,219,544 AKrupp Polysius AG · 1993
- Carbon dioxide capture from a cement manufacturing process6US 7,976,628 B2Clemson University · 2011
- Reduction of nitrogen oxide (NO.sub.x) emission from a kiln plant4US 5,026,275 AF. L. Smidth & Co. A/S · 1991
- Process of decreasing NO.sub.x content of exhaust gases4US 5,137,704 AMetallgesellschaft Aktiengesellschaft · 1992
- Method and plant for manufacturing cement clinker3US 7,390,357 B2FLSmidth A/S · 2008