C21D 9/005
Furnaces in which the charge is moving up or down
Official title: {Furnaces in which the charge is moving up or down (for wire, strip C21D9/54)}
C21D9/005 (Furnaces in which the charge is moving up or down) appears on 35 US grants and 40 published applications in this corpus.
Search patents in C21D- Granted patents
- 35
- Published applications
- 40
- Assignees
- 30
- Inventors
- 121
- Latest grant
- 7 Apr 2026
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 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 4 |
| 2016 | 3 | 4 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 3 |
| 2023 | 1 | 4 |
| 2024 | 0 | 5 |
| 2025 | 4 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steel-sheet non-plating defect prediction method, steel-sheet defect reduction method, hot-dip galvanized steel sheet manufacturing method, and steel-sheet non-plating defect prediction model generation method7 Apr 2026US 12,595,543 B2Jfe Steel Corporation
- Continuous annealing line, continuous hot-dip galvanizing line, and steel sheet production method10 Mar 2026US 12,571,068 B2Jfe Steel Corporation
- Direct flame burner unit for furnaces for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants23 Dec 2025US 12,504,165 B2Tenova S. P. A.
- Annealing furnace, method of constructing annealing furnace, and structure for prefabrication15 Jul 2025US 12,359,277 B2Maftec Co., Ltd.
- Heat treatment method and heat treatment furnace20 May 2025US 12,305,248 B2Kanto Yakin Kogyo K.K.
- Liquid cooling of a strip running in a continuous line30 Apr 2026US 2026/0117356 A1Fives Stein
- Jet-type direct-fired preheating system26 Mar 2026US 2026/0085374 A1Baoshan Iron & Steel Co., Ltd.
- Method for heating steel sheet, method for producing coated steel sheet, direct fired furnace, and continuous hot-dip galvanizing facility25 Dec 2025US 2025/0388989 A1Jfe Steel Corporation
- High-speed jet and radiation combined heating device and rapid heating method thereof25 Dec 2025US 2025/0388991 A1Baoshan Iron & Steel Co., Ltd.
- Induction heating method and induction heating apparatus for ring-shaped member, manufacturing method for ring-shaped member, manufacturing method for bearing, manufacturing method for vehicle, and manufacturing method for mechanical device28 Aug 2025US 2025/0271034 A1Nsk Ltd.
Most cited
By later US patents
- Apparatus and method for sand core debonding and heat treating metal castings10US 6,253,830 B1Procedyne Corp. · 2001
- Furnace for the heat treatment of work pieces8US 4,738,577 ARuhrgas Aktiengesellschaft · 1988
- Hot stamping system and method8US 9,308,564 B2Magna International Inc. · 2016
- Degassing metal powder7US 4,515,629 AUnited Technologies Corporation · 1985
- Heat treatment furnace and conveyor with multi-conveyance7US 6,133,549 A2000