Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5369684 | Apparatus and method for directing calls to mobile station subscribers | John Joseph Hayes, Jr., Harald Kallin | 1994-11-29 |
| 5153902 | Multi-exchange paging system for locating a mobile telephone in a wide area telephone network | John Joseph Hayes, Jr., Harald Kallin | 1992-10-06 |