Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5886992 | Frame synchronized ring system and method | K. Pertti T. Raatikainen, Olli Martikainen | 1999-03-23 |
| 5444700 | Switching element and method for controlling the same | Olli Martikainen, Pertti Raatikainen, Marko Suoknuutti | 1995-08-22 |