Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990848 | Combined structure of a helical antenna and a dielectric plate | Petteri Annamaa, Seppo Ojantakanen, Seppo Raatikainen, Pekka Kinnunen, Kai Vuokko +1 more | 1999-11-23 |
| 5734351 | Double-action antenna | Seppo Ojantakanen, Seppo Raatikainen, Petteri Annamaa | 1998-03-31 |