D02H 13/20
With fixed spacing
Official title: with fixed spacing
D02H13/20 (With fixed spacing) appears on 2 US grants and 0 published applications in this corpus.
Search patents in D02H- Granted patents
- 2
- Published applications
- 0
- Assignees
- 2
- Inventors
- 7
- Latest grant
- 1 Mar 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 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