C03B 5/0338
Rotary furnaces
Official title: {Rotary furnaces}
C03B5/0338 (Rotary furnaces) appears on 4 US grants and 0 published applications in this corpus.
Search patents in C03B- Granted patents
- 4
- Published applications
- 0
- Assignees
- 1
- Inventors
- 2
- Latest grant
- 11 Jan 2000
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electric resistance melting furnace11 Jan 2000US 6,014,402 ABayer Aktiengesellschaft
- Method for the manufacture of hollow fused quartz or fused silica ingots15 Jul 1980US 4,212,661 A
- Apparatus for forming an ingot in a rotating housing12 Feb 1980US 4,188,201 A
- Method for the conversion of crystalline silica raw materials into amorphous silica9 Aug 1977US 4,040,795 A
No published applications in this class yet.
Most cited
By later US patents