F27D 15/0273
On a rotary hearth
Official title: {on a rotary hearth}
F27D15/0273 (On a rotary hearth) appears on 9 US grants and 4 published applications in this corpus.
Search patents in F27D- Granted patents
- 9
- Published applications
- 4
- Assignees
- 6
- Inventors
- 17
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotary tube apparatus4 Jun 2024US 12,000,655 B2Grenzebach Bsh GmbH
- Multitubular rotary heat exchanger12 Apr 2022US 11,300,357 B2Yoshino Gypsum Co., Ltd.
- Calcined gypsum treatment device and calcined gypsum treatment method13 Apr 2021US 10,974,993 B2Yoshino Gypsum Co., Ltd.
- Delimitation for reduction of the dust emissions for a cooler for cooling hot bulk material18 Feb 2020US 10,563,921 B2Primetals Technologies Austria GmbH
- Raw material heating apparatus23 Jan 2001US 6,178,192 B1Chisaki Co., Ltd.
- Rotary tube apparatus15 Jul 2021US 2021/0215428 A1Grenzebach Bsh GmbH
- Multitubular rotary heat exchanger18 Feb 2021US 2021/0048254 A1Yoshino Gypsum Co., Ltd.
- Calcined gypsum treatment device and calcined gypsum treatment method17 Jan 2019US 2019/0016633 A1Yoshino Gypsum Co., Ltd.
- Delimitation for reduction of the dust emissions for a cooler for cooling hot bulk material3 May 2018US 2018/0120030 A1Primetals Technologies Austria GmbH
Most cited
By later US patents
- Ring shaped cooling device2US 4,077,136 AKrupp-Koppers GmbH · 1978
- Calcined gypsum treatment device and calcined gypsum treatment method1US 10,974,993 B2Yoshino Gypsum Co., Ltd. · 2021
- Method and apparatus for cooling of hot bulk materials1US 3,942,263 ADravo Corporation · 1976
- Round cooler for hot bulk material1US 4,126,411 ADravo Corporation · 1978
- Raw material heating apparatus1US 6,178,192 B1Chisaki Co., Ltd. · 2001