Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6950068 | Method of manufacturing an internal antenna, and antenna element | Mika Bordi, Petteri Annamaa, Esa Mikkonen | 2005-09-27 |
| 6140973 | Simple dual-frequency antenna | Petteri Annamaa, Matti Niemi | 2000-10-31 |
| 5990848 | Combined structure of a helical antenna and a dielectric plate | Petteri Annamaa, Seppo Ojantakanen, Tero Haapamaki, Pekka Kinnunen, Kai Vuokko +1 more | 1999-11-23 |
| 5734351 | Double-action antenna | Seppo Ojantakanen, Petteri Annamaa, Tero Haapamaki | 1998-03-31 |