Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590407 | Method and device for carrying out security procedures involving mobile stations in hybrid cellular telecommunication systems | Hannu Honkala, Markku Rautiola, Tapio Siik, Petri Uosukainen, Kai Narvanen +2 more | 2009-09-15 |
| 7499706 | Network frequency setting | Janne Kallio, Tero Rantala, Markku Rautiola, Kari Tuovinen, Jan Parkkinen +2 more | 2009-03-03 |
| 7342905 | Communications system | Roy Mickos, Peeter Pruuden | 2008-03-11 |
| 7301919 | Transmission of voice over IP in wireless telecommunications system | Jaakko Sundquist, Peeter Pruuden, Jani Ekman | 2007-11-27 |
| 7171209 | System and method for allowing subscribers to make internal calls while roaming to other networks | Raili Numminen, Kai Narvanen | 2007-01-30 |
| 7092709 | Handover of a mobile station from an internal cellular communication system to an external cellular communication system | Hannu Honkala, Timo Hanninen, Roy Mickos, Kai Narvanen, Markku Rautiola +2 more | 2006-08-15 |
| 4906810 | Method and a device for the manufacturing of an optical coupler | Awnashilal B. Sharma, Ari Virekunnas | 1990-03-06 |