Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5928565 | Conducting polymer material and method for its production | Toivo Karna, Kalle Levon, Esko Savolainen | 1999-07-27 |
| 5662833 | Electrically conducting thermoset polymer compositions with hydroxy containing protonic acid dopant | Jan-Erik Osterholm, Hannele Jarvinen | 1997-09-02 |
| 5585038 | Conductive plastics material and a method for its preparation | Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo K arn a, Heikki Ruohonen +3 more | 1996-12-17 |
| 5585040 | Conductive plastics material and a method for its preparation | Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo Karna, Heikki Ruohonen +3 more | 1996-12-17 |
| 5531932 | Metal compound/protonic acid containing electrically conductive compositions and methods for their preparation | Toivo Karna, Timo Niemi, Heikki Ruohonen, Esko Savolainen, Helge Lindstrom +2 more | 1996-07-02 |
| 5436317 | Method for preparing polyaniline | Hannele Jarvinen, Irma Auvinen, Eija Silvasti | 1995-07-25 |
| 5346649 | Conducting polymer material and method for its production | Toivo Karna, Kalle Levon, Esko Savolainen | 1994-09-13 |
| 5340499 | Electrically conductive compositions and methods for their preparation | Toivo Karna, Timo Niemi, Heikki Ruohonen, Esko Savolainen, Helge Lindstrom +3 more | 1994-08-23 |
| 5279769 | Method for preparing a conductive polymer | Timo Kokkonen, Toivo Karna, Per Nyholm, Jan-Erik sterholm, Henrik Stubb | 1994-01-18 |
| 5219492 | Conductive plastic composites | Jan-Erik Osterholm, Sari Karjalainen, Pirjo Mononen | 1993-06-15 |
| 5158707 | Conductive plastic composite and its preparation and use | Torvald Vestberg, Jan-Erik sterholm, Ismo Lehtiniemi | 1992-10-27 |
| 5151221 | Conductive plastic composites | Jan-Erik Osterholm, Sari Karjalainen, Pirjo Mononen | 1992-09-29 |