F27D 3/159
For retaining slag during the pouring of the metal or retaining metal
Official title: {for retaining slag during the pouring of the metal or retaining metal during the pouring of the slag}
F27D3/159 (For retaining slag during the pouring of the metal or retaining metal) appears on 32 US grants and 17 published applications in this corpus.
Search patents in F27D- Granted patents
- 32
- Published applications
- 17
- Assignees
- 25
- Inventors
- 62
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Slag door for a melting furnace28 Mar 2023US 11,614,283 B2Danieli & C. Officine Meccaniche SpA
- Control method and apparatus for inhibiting slag entrapment in ladle in last stage of pouring during continuous casting26 Oct 2021US 11,154,926 B2Baoshan Iron & Steel Co., Ltd.
- Method of manufacturing a slag discharge door8 May 2018US 9,964,360 B2Hyundai Steel Company
- Advanced technology for iron-chrome alloys production and related plant24 May 2016US 9,347,108 B2
- Arc metallurgic furnace slagging door1 Dec 2015US 9,200,845 B2Sms Concast Italia S.P.A.
- Melting furnace13 Aug 2026US 2026/0235363 A1Kubota Corporation
- Slag door for a melting furnace1 Oct 2020US 2020/0309456 A1Danieli & C. Officine Meccaniche SpA
- Device and method for continuously removing impurities from molten metal20 Aug 2020US 2020/0261970 A1
- Control method and apparatus for inhibiting slag entrapment in ladle in last stage of pouring during continuous casting26 Sep 2019US 2019/0291176 A1Baoshan Iron & Steel Co., Ltd.
- Advanced technology for iron-chrome alloys production and related plant27 Aug 2015US 2015/0240321 A1
Most cited
By later US patents
- Slag control method and apparatus91US 5,505,435 AIndustrial Maintenance and Contract Services · 1996
- Molten aluminum refining apparatus56US 5,846,481 A1998
- Slag retaining device for use in converters, ladles, or the like19US 4,709,903 A1987
- Continuous process for copper smelting and converting in a single furnace by oxygen injection15US 4,470,845 ANewmont Mining Corporation · 1984
- Apparatus for separating slag from a molten metal9US 4,444,378 A1984