Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699053 | Person paging method | — | 1997-12-16 |
| 5680440 | Registration and connection in a communication network | Walter Ghisler, Johan Falk, Jan Swerup, Johan Olsson | 1997-10-21 |
| 5668876 | User authentication method and apparatus | Johan Falk | 1997-09-16 |