F27B 9/082
Muffle furnaces
Official title: {Muffle furnaces}
F27B9/082 (Muffle furnaces) appears on 34 US grants and 9 published applications in this corpus.
Search patents in F27B- Granted patents
- 34
- Published applications
- 9
- Assignees
- 35
- Inventors
- 68
- Latest grant
- 15 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Furnace15 Oct 2024US 12,117,241 B2Onejoon GmbH
- Furnace14 Mar 2023US 11,603,607 B2Eisenmann SE
- Furnace muffle for an annealing furnace9 Apr 2019US 10,254,047 B2Sandvik Materials Technology Deutschland GmbH
- Sintering furnace, method of manufacturing sintered objects, and sintered objects10 May 2005US 6,891,140 B2Gifu Prefecture
- Continuous process furnace28 Jan 2003US 6,512,206 B1MRL Industries, Inc.
- Furnace18 Feb 2021US 2021/0048249 A1Onejoon GmbH
- Controlled atmosphere recirculation oven12 Nov 2020US 2020/0354859 A1Furnace Engineering Pty Ltd
- Furnace11 Jun 2020US 2020/0181809 A1Eisenmann SE
- Temperature-control device for components9 May 2019US 2019/0136338 A1
- Furnace muffle for an annealing furnace5 May 2016US 2016/0123671 A1Sandvik Imaterials Technology Deutschland GmbH
Most cited
By later US patents
- Method of producing carbonaceous bodies20US 4,738,753 AAlusuisse Italia S.p.A. · 1988
- Tunnel kiln for use in rebaking carbonaceous moldings impregnated with tar, pitch or the like17US 4,128,394 AShinagawa Refractories Co., Ltd. · 1978
- Furnace for the production of solar cells16US 6,288,366 B1OTB Group B.V. · 2001
- Furnace for porcelain enameling14US 4,310,300 AEagle-Picher Industries, Inc. · 1982
- Method and tunnel type furnace for calcining carbonaceous bodies, in particular electrodes14US 4,674,975 AAlusuisse Italia S.p.A. · 1987