Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4254239 | Biodegradable vinylpyrrolidone polymers, their manufacture and use | Ferdinand Straub, Hans-Uwe Schenck, Siegfried Lang | 1981-03-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4254239 | Biodegradable vinylpyrrolidone polymers, their manufacture and use | Ferdinand Straub, Hans-Uwe Schenck, Siegfried Lang | 1981-03-03 |