Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967618 | Antenna with variable directional pattern | Timo Leppaluoto | 2005-11-22 |
| 5990848 | Combined structure of a helical antenna and a dielectric plate | Petteri Annamaa, Seppo Raatikainen, Tero Haapamaki, Pekka Kinnunen, Kai Vuokko +1 more | 1999-11-23 |
| 5734351 | Double-action antenna | Seppo Raatikainen, Petteri Annamaa, Tero Haapamaki | 1998-03-31 |
| 5585771 | Helical resonator filter including short circuit stub tuning | Kimmo Ervasti | 1996-12-17 |