Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4610809 | Doped lignin polymer | Ermo Kaila, Anita Kinanen, Kalle Levon, Johannes Turunen, Jan-Erik sterholm | 1986-09-09 |
| 4239667 | Method for preparing polyurethane coatings from a neutral substance of mixed soap | Vaino Era | 1980-12-16 |