C04B 7/60
Methods for eliminating alkali metals or compounds thereof
Official title: Methods for eliminating alkali metals or compounds thereof {, e.g. from the raw materials or during the burning process; methods for eliminating other harmful components (avoiding environmental pollution C04B7/364)}
C04B7/60 (Methods for eliminating alkali metals or compounds thereof) appears on 63 US grants and 30 published applications in this corpus.
Search patents in C04B- Granted patents
- 63
- Published applications
- 30
- Assignees
- 39
- Inventors
- 126
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 5 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 4 | 3 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 3 | 5 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 3 | 0 |
| 2018 | 4 | 4 |
| 2019 | 3 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the purification of waste materials or industrial by-products comprising chlorine26 Mar 2024US 11,938,527 B2amaTEQ Holding GmbH
- Method and apparatus for reducing mercury content of cement kiln exhaust gas23 Nov 2021US 11,179,672 B2Taiheiyo Engineering Inc.
- Method and device for treating and utilizing bypass dusts28 Apr 2020US 10,633,283 B2Holcim Technology Ltd
- Method and apparatus for producing cement clinker29 Oct 2019US 10,457,599 B2SüDbayerisches Portland-Zementwerk Gebr. WiesböCk & Co. GmbH
- Cement clinker line and a method for operating a cement clinker line27 Aug 2019US 10,392,302 B2SüDbayerisches Portland-Zementwerk Gebr. WiesböCk & Co. GmbH
- Method for treating salt-containing dusts18 Dec 2025US 2025/0382192 A1
- Calcium carbonate generation method and system24 Oct 2024US 2024/0351902 A1Kyushu University, National University Corporation
- Improved pozzolan and methods of making and using same26 Sep 2024US 2024/0317642 A1Progressive Planet Solutions Inc.
- Manufacturing portland cement with thermal plasma9 Jun 2022US 2022/0177366 A1
- Method and apparatus for reducing mercury content of cement kiln exhaust gas20 Aug 2020US 2020/0261845 A1Taiheiyo Engineering Inc.
Most cited
By later US patents
- Cement and concrete compositions for controlling alkali-silica reaction in concrete79US 6,022,408 AFMC Corporation · 2000
- System and method for treating dust contained in extracted cement kiln combustion gas76US 7,749,311 B2Taiheiyo Cement Corporation · 2010
- System and method for treating dust contained in extracted cement kiln combustion gas75US 7,789,944 B2Taiheiyo Cement Corporation · 2010
- Method for scrubbing pollutants from an exhaust gas stream60US 5,100,633 APassamaquoddy Technology Limited Partnership · 1992
- Control of cement clinker production by analysis of sulfur in the end product47US 5,882,190 A1999