F27B 7/06
Rotary-drum furnaces, i.e. horizontal or slightly inclined: adapted for treating the charge
Official title: adapted for treating the charge in vacuum or special atmosphere
F27B7/06 (Rotary-drum furnaces, i.e. horizontal or slightly inclined: adapted for treating the charge) appears on 29 US grants and 37 published applications in this corpus.
Search patents in F27B- Granted patents
- 29
- Published applications
- 37
- Assignees
- 41
- Inventors
- 98
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 3 |
| 2015 | 1 | 1 |
| 2016 | 1 | 4 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 2 |
| 2025 | 0 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Graphite rotary tube furnace19US 6,042,370 AHaper International Corp. · 2000
- Ore-processing systems including rotary kilns17US 4,052,151 AVyzkumny ustav kovu · 1977
- Process and apparatus for removing contaminations from bulk material12US 5,517,004 ARecycling Nederland Holding B.V. · 1996
- Pressurized rotary kiln with thrust containment10US 4,367,075 AAllis-Chalmers Corporation · 1983
- Metal recovery method8US 3,984,090 A1976