Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5531932 | Metal compound/protonic acid containing electrically conductive compositions and methods for their preparation | Toivo Karna, Jukka Laakso, Timo Niemi, Heikki Ruohonen, Esko Savolainen +2 more | 1996-07-02 |
| 5340499 | Electrically conductive compositions and methods for their preparation | Toivo Karna, Jukka Laakso, Timo Niemi, Heikki Ruohonen, Esko Savolainen +3 more | 1994-08-23 |