C21C 3/00
Manufacture of wrought-iron or wrought-steel
C21C3/00 (Manufacture of wrought-iron or wrought-steel) appears on 2 US grants and 0 published applications in this corpus.
Search patents in C21C- Granted patents
- 2
- Published applications
- 0
- Assignees
- 1
- Inventors
- 12
- Latest grant
- 11 Jun 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 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