F27B 7/2041
Consisting of at least two strings of cyclones with two different admissions
Official title: {consisting of at least two strings of cyclones with two different admissions of raw material}
F27B7/2041 (Consisting of at least two strings of cyclones with two different admissions) appears on 49 US grants and 25 published applications in this corpus.
Search patents in F27B- Granted patents
- 49
- Published applications
- 25
- Assignees
- 25
- Inventors
- 72
- Latest grant
- 21 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 2 |
| 2013 | 3 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 3 | 3 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Oxyfuel clinker production without recirculation of the preheater exhaust gases21 Nov 2023US 11,820,718 B2Thyssenkrupp Industrial Solutions AG
- Low NOx calciner13 Apr 2021US 10,974,992 B2FLSmidth A/S
- Method and apparatus for reducing the NOx emissions in a rotary kiln9 Feb 2021US 10,914,522 B2Holcim Technology Ltd
- Use of clinker kiln dust for gas scrubbing23 Jan 2018US 9,873,077 B2CalPortland Company
- Use of clinker kiln dust for gas scrubbing24 Oct 2017US 9,795,912 B2CalPortland Company
- Method for manufacturing cement clinker and cement plant20 Nov 2025US 2025/0353788 A1HSustainability GmbH
- Cement manufacturing plant and method of operating a cement manufacturing plant23 Jan 2025US 2025/0026683 A1
- Assembly for reducing co2 emission in plants for clinker production31 Oct 2024US 2024/0360033 A1Politecnico Di Milano
- Oxyfuel clinker production without recirculation of the preheater exhaust gases5 Aug 2021US 2021/0238091 A1Thyssenkrupp Industrial Solutions AG
- Low nox calciner2 Jul 2020US 2020/0207661 A1FLSmidth A/S
Most cited
By later US patents
- Method of recovering exhaust gas from boiler in electrical power generating device using combustible material as fuel and apparatus for performing such method14US 4,392,353 ASumitomo Semento Kabushiki Kaisha · 1983
- Method of burning granular or pulverulent raw material and kiln plant therefor13US 4,045,162 AF. L. Smidth & Co. · 1977
- Installation for the manufacture of cement13US 4,071,310 AFives-Cail Babcock · 1978
- Method and apparatus for burning pulverulent materials12US 3,938,949 AF. L. Smidth & Co. · 1976
- Method and apparatus for heat treating pulverous raw materials12US 4,022,568 AF. L. Smidth & Co. · 1977