F27B 3/02
Hearth-type furnaces: of single-chamber fixed-hearth type
Official title: of single-chamber fixed-hearth type
F27B3/02 (Hearth-type furnaces: of single-chamber fixed-hearth type) appears on 23 US grants and 25 published applications in this corpus.
Search patents in F27B- Granted patents
- 23
- Published applications
- 25
- Assignees
- 23
- Inventors
- 64
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 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 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 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 | 2 |
| 2014 | 1 | 2 |
| 2015 | 0 | 4 |
| 2016 | 2 | 6 |
| 2017 | 3 | 1 |
| 2018 | 3 | 1 |
| 2019 | 5 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Thermophotovoltaic generator in high temperature industrial process77US 6,538,193 B1JX Crystals Inc. · 2003
- Metallurgical melting and refining unit33US 4,389,043 AKorf Industrie und Handel GmbH und Co KG · 1983
- Apparatus for injecting solid particulate material into a vessel11US 6,398,842 B2Technological Resources Pty. Limited · 2002
- Melt and hold furnace for non-ferrous metals6US 4,327,901 A1982
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