C21D 9/677
Arrangements of heating devices
C21D9/677 (Arrangements of heating devices) appears on 16 US grants and 8 published applications in this corpus.
Search patents in C21D- Granted patents
- 16
- Published applications
- 8
- Assignees
- 12
- Inventors
- 19
- Latest grant
- 15 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 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 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 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 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 4 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Jig and heating apparatus with a jig15 Oct 2019US 10,443,108 B2Neturen Co., Ltd.
- Heating apparatus, heat treatment apparatus, and heating method27 Mar 2018US 9,926,616 B2Neturen Co., Ltd.
- Closed transport fluid system for furnace-internal heat exchange between annealing gases27 Dec 2016US 9,528,166 B2EBNER Industrieofenbau GmbH
- Heat treatment method23 Aug 2016US 9,423,183 B2Mitsubishi Heavy Industries, Ltd.
- Hood-type annealing furnace and method for operating the same29 Mar 2016US 9,297,585 B2Bilstein GmbH & Co. KG
- Heating apparatus, heat treatment apparatus, and heating method19 May 2016US 2016/0138121 A1Neturen Co., Ltd.
- Heating apparatus, heat treatment apparatus, and heating method19 May 2016US 2016/0138124 A1Neturen Co., Ltd.
- Heat treatment method15 Jan 2015US 2015/0017593 A1Mitsubishi Heavy Industries, Ltd.
- Closed transport fluid system for furnace-internal heat exchange between annealing gases25 Dec 2014US 2014/0374969 A1EBNER Industrieofenbau GmbH
- Bell-type furnace with a heat dispensing device positioned within a protective hood, in particular fed by an energy source external to the furnace chamber, for dispensing heat to annealing gas13 Nov 2014US 2014/0333015 A1
Most cited
By later US patents
- Method of operating a batch type annealing furnace using a plasma heat source9US 3,980,467 A1976
- Method and apparatus for heating coils of strip8US 4,165,868 AAllegheny Ludlum Industries, Inc. · 1979
- High temperature convection furnace8US 4,891,008 AColumbia Gas Service System Corporation · 1990
- High temperature convection furnace7US 4,830,610 AColumbia Gas Service System Corporation · 1989
- Convective heat transfer by cascading jet impingement7US 5,228,513 AIndugas, Inc. · 1993