C21D 9/70
Furnaces for ingots, i.e. soaking pits
C21D9/70 (Furnaces for ingots, i.e. soaking pits) appears on 36 US grants and 18 published applications in this corpus.
Search patents in C21D- Granted patents
- 36
- Published applications
- 18
- Assignees
- 29
- Inventors
- 93
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 4 |
| 2021 | 0 | 1 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Layout of slab storerooms and furnaces for separate charging of cold blanks and hot blanks of thick plate, and furnace charging method14 Jan 2025US 12,196,493 B2Baosteel Zhanjiang Iron & Steel Co., Ltd.
- Large-sized high-Nb superalloy ingot and smelting process thereof2 Jan 2024US 11,859,262 B2Fushun Special Steel Shares Co., Ltd.
- Method for producing metal ingot5 Dec 2023US 11,833,582 B2Nippon Steel Corporation
- Method for producing metal ingot15 Nov 2022US 11,498,118 B2Nippon Steel Corporation
- Method for and equipment for suppressing discoloration of Al—Mg products27 Sep 2022US 11,453,938 B2Norsk Hydro ASA
- Layout of slab storerooms and furnaces for separate charging of cold blanks and hot blanks of thick plate, and furnace charging method6 Oct 2022US 2022/0316801 A1Baosteel Zhanjiang Iron & Steel Co., Ltd.
- Furnace with movable beam load handling system24 Mar 2022US 2022/0090862 A1SMS group GmbH
- Large-sized high-nb superalloy ingot and smelting process thereof4 Mar 2021US 2021/0062292 A1Fushun Special Steel Shares Co., Ltd.
- Method for and equipment for suppressing discoloration of al-mg products23 Jul 2020US 2020/0232080 A1Norsk Hydro ASA
- Processes for producing superalloys and superalloys obtained by the processes25 Jun 2020US 2020/0199711 A1FORONI S.p.A.
Most cited
By later US patents
- Method and equipment for bringing metal alloy ingots, billets and the like to the semisolid or semiliquid state in readiness for thixotropic forming22US 5,665,302 AReynolds Wheels International Ltd. · 1997
- High temperature insulating container11US 4,168,013 ATrans Temp Inc. · 1979
- Surface hardenable stainless steels7US 10,351,922 B2QuesTek Innovations LLC · 2019
- Furnace seal7US 4,183,305 ABritish Steel Corporation · 1980
- Method for homogenizing steel compositions6US 10,738,367 B2TerraPower, LLC · 2020