Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4283426 | Cellulose hydrate tubing with aging-resistant barrier layer and processes for the manufacture thereof | Harald Schenk, Hermann Winter | 1981-08-11 |
WS
Walter Spietschka
Overall (All Time): #4,094,760 of 4,157,543Top 100%
1
Patents All Time