Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5787354 | Method and apparatus for locating a radiotelephone within a cellular system | Calvin Gray | 1998-07-28 |
| 5774805 | Multi-mode communication network with handset-selected channel assignments | — | 1998-06-30 |
| 5703934 | Cordless telephone with integral caller ID display | John K. Dion | 1997-12-30 |
| 5594782 | Multiple mode personal wireless communications system | John K. Dion | 1997-01-14 |
| 5535260 | Cellular radiotelephone with dialed number analysis | John K. Dion | 1996-07-09 |
| 5465388 | Emergency cellular radiotelephone and method therefor | — | 1995-11-07 |
| 5247160 | Method for transmitting creditcard information for a group of bus passengers | — | 1993-09-21 |
| 5247564 | Adaptive vehicle alarm detection and reporting system | — | 1993-09-21 |
| 5220593 | Cellular radiotelephone credit card paystation method | Thanh H. Cao, Daniel Borkowski, Donald A. Plouff, Phillip Brown | 1993-06-15 |
| 5159625 | Method of selecting the cellular system with which a cellular mobile radiotelephone communicates | — | 1992-10-27 |
| 5144649 | Cellular radiotelephone credit card paystation method | Thanh H. Cao, Daniel Borkowski, Donald A. Plouff, Phillip Brown | 1992-09-01 |
| 5046082 | Remote accessing system for cellular telephones | John K. Dion, Kevin B. Blair, William J. Austin | 1991-09-03 |