F27B 1/025
With fore-hearth
Official title: {with fore-hearth}
F27B1/025 (With fore-hearth) appears on 36 US grants and 3 published applications in this corpus.
Search patents in F27B- Granted patents
- 36
- Published applications
- 3
- Assignees
- 31
- Inventors
- 60
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multistage vertical graphitization furnace system7 Jan 2025US 12,188,722 B2Efc Co., Ltd.
- Method and device for the continuous production of steel using metal charge material8 May 2012US 8,172,922 B2SMS Siemag Aktiengesellschaft
- Method and device for the continuous production of steel using metal charge material1 Mar 2011US 7,897,100 B2SMS Siemag Aktiengesellschaft
- Method of melting oxidic slags and combustion residues12 Jun 2001US 6,245,123 B1"Holderbank" Financiere Glarus AG
- Melting furnace of metals and melting method thereof30 Mar 1999US 5,888,458 ANippon Sanso Corporation
- Multistage vertical graphitization furnace system12 Dec 2024US 2024/0410651 A1Efc Co., Ltd.
- Method and device for the continuous production of steel using metal charge material2 Jun 2011US 2011/0126672 A1SMS Siemag Aktiengesellschaft
- Method and device for the continuous production of steel using metal charge material21 Jul 2005US 2005/0155457 A1SMS Siemag Aktiengesellschaft
Most cited
By later US patents
- Vertical shaft melting furnace and method of melting65US 4,877,449 AInstitute of Gas Technology · 1989
- Melting furnace27US 5,107,517 AOy Partek AB · 1992
- Method and apparatus for the continuous melting of scrap24US 4,786,321 AFried. Krupp Gesellschaft mit beschrankter Haftung · 1988
- Solid refuse disposal apparatus19US 4,291,634 AUnion Carbide Corporation · 1981
- Plant for producing steel from scrap17US 4,740,989 AVoest-Alpine Aktiengesellschaft · 1988