Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10305966 | System for authorization of access | — | 2019-05-28 |
| 9232033 | Attachable mobile phone keypad device | — | 2016-01-05 |
| 8041016 | Method and device for access communication/control | — | 2011-10-18 |
| 7031665 | Method and device for utilization of mobile radio telephones for surveillance and/or control purposes | — | 2006-04-18 |
| 6909382 | Polyphonic/chordic annotation method | — | 2005-06-21 |
| 6606376 | Method for entrance telephone communication utilizing public subcriber telephone networks | — | 2003-08-12 |
| 6393117 | Telephoning method comprising novel subscriber service | — | 2002-05-21 |
| 5467386 | Method for signalling/communication within an entrance telephone system and an entrance telephone system communicating according to the method | — | 1995-11-14 |
| 5046083 | Entrance communication system | — | 1991-09-03 |
| 4987589 | Entrance telephone system utilizing the public subscriber telephone network | — | 1991-01-22 |
| 4872194 | Method for transmission of alarm signals utilizing an entrance telephone system | — | 1989-10-03 |
| 4669486 | Device for taking and dispensing blood samples for the purpose of determining blood sedimentation | — | 1987-06-02 |