Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7358304 | High-molecular, crosslinked polyvinyl butyrals, method for the production and use thereof | Bernd Papenfuhs, Martin Steuer | 2008-04-15 |
| 7312275 | Cross-linked polyvinyl acetals | Bernd Papenfuhs, Martin Steuer | 2007-12-25 |
| 6984692 | Polyvinyl acetal and its use | Yousuke Kumaki, Takeshi Kusudou, Naoki Fujiwara, Bernd Papenfuhs | 2006-01-10 |