B23K 20/20
Special methods allowing subsequent separation
Official title: Special methods allowing subsequent separation, e.g. of metals of high quality from scrap material
B23K20/20 (Special methods allowing subsequent separation) appears on 2 US grants and 0 published applications in this corpus.
Search patents in B23K- Granted patents
- 2
- Published applications
- 0
- Assignees
- 2
- Inventors
- 3
- Latest grant
- 18 Jan 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 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