Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5585038 | Conductive plastics material and a method for its preparation | Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo K arn a, Jukka Laakso +3 more | 1996-12-17 |
| 5585040 | Conductive plastics material and a method for its preparation | Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo Karna, Jukka Laakso +3 more | 1996-12-17 |
| 5531932 | Metal compound/protonic acid containing electrically conductive compositions and methods for their preparation | Toivo Karna, Jukka Laakso, Timo Niemi, Esko Savolainen, Helge Lindstrom +2 more | 1996-07-02 |
| 5340499 | Electrically conductive compositions and methods for their preparation | Toivo Karna, Jukka Laakso, Timo Niemi, Esko Savolainen, Helge Lindstrom +3 more | 1994-08-23 |