F27B 9/203
Having ramps
Official title: {having ramps (F27B9/206 takes precedence)}
F27B9/203 (Having ramps) appears on 18 US grants and 0 published applications in this corpus.
Search patents in F27B- Granted patents
- 18
- Published applications
- 0
- Assignees
- 12
- Inventors
- 30
- Latest grant
- 1 Jan 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Fluid-fuel furnace burner for iron and steel products1 Jan 2002US 6,334,770 B1
- Furnaces for reheating siderurgical products29 May 2001US 6,238,210 B1Stein Heurtey
- Device for transferring products in plants for metallurgical treating of said products13 Jun 2000US 6,074,204 AStein Heurtey
- Reheat furnace apparatus and method of use13 Oct 1998US 5,820,364 ARepublic Engineered Systems
- Walking hearth furnace6 Jan 1998US 5,704,783 AThermoprocess GmbH
No published applications in this class yet.
Most cited
By later US patents
- Walking beam furnace for round bar and the like15US 4,025,298 AMidland-Ross Corporation · 1977
- Method and walking beam furnace for the intermediate heating of pipes in hot rolling mills13US 4,585,411 AItalimpianti Societa Italiana Impianti p.A. · 1986
- Walking beam furnace12US 4,330,262 AItalimpianti Societa Italiana Impianti p.A. · 1982
- Walking beam oven for advancing products at different speeds in different sections of the oven12US 4,723,909 AStein Heurtey · 1988
- Fluid-fuel furnace burner for iron and steel products12US 6,334,770 B12002