C23D 9/04
Non-electric tunnel ovens
C23D9/04 (Non-electric tunnel ovens) appears on 3 US grants and 0 published applications in this corpus.
Search patents in C23D- Granted patents
- 3
- Published applications
- 0
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 21 Feb 1995
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
No published applications in this class yet.
Most cited
By later US patents