Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346649 | Conducting polymer material and method for its production | Toivo Karna, Jukka Laakso, Kalle Levon | 1994-09-13 |
| 5340499 | Electrically conductive compositions and methods for their preparation | Toivo Karna, Jukka Laakso, Timo Niemi, Heikki Ruohonen, Helge Lindstrom +3 more | 1994-08-23 |