F27D 15/022
Grate plates
Official title: {grate plates}
F27D15/022 (Grate plates) appears on 71 US grants and 26 published applications in this corpus.
Search patents in F27D- Granted patents
- 71
- Published applications
- 26
- Assignees
- 41
- Inventors
- 136
- Latest grant
- 11 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 1 |
| 2006 | 3 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cooler for cooling bulk material11 Feb 2025US 12,222,163 B2thyssenkrupp AG
- Grate bar for stepped grate14 Nov 2023US 11,815,265 B2IKN GmbH
- Method for fitting or retrofitting a sinter cooler10 Jan 2023US 11,549,754 B2Paul Wurth Deutschland GmbH
- Cooler31 May 2022US 11,346,606 B2Føns Companies ApS
- Cooling device and method for cooling elements passing through said device10 May 2022US 11,326,218 B2Linde Aktiengesellschaft
- Cooler for cooling bulk material3 Aug 2023US 2023/0243590 A1thyssenkrupp AG
- Grate Bar for Stepped Grate11 Aug 2022US 2022/0252261 A1IKN GmbH
- Method for fitting or retrofitting a sinter cooler17 Feb 2022US 2022/0049899 A1Paul Wurth Deutschland GmbH
- Clinker cooler and method for operating a clinker cooler11 Mar 2021US 2021/0071956 A1Alite GmbH
- Cooler7 Jan 2021US 2021/0003346 A1Føns Companies ApS
Most cited
By later US patents
- Grate cooler for cooling hot bulk material30US 4,870,913 AKlockner-Humboldt-Deutz Aktiengesellschaft · 1989
- Collapsible container with an unbroken top wall23US 6,422,409 B2Carrimor · 2002
- Cooling apparatus19US 4,762,489 AKrupp Polysius AG · 1988
- Apparatus for cooling hot material16US 4,732,561 AKrupp Polysius AG · 1988
- Grate plate for thrust grating coolers for cooling hot material16US 5,433,157 AKloeckner-Humboldt-Deutz AG · 1995