Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6697630 | Automatic location identification system comparing stored field strength data and an actual cellular call's field strength | — | 2004-02-24 |
| 6259778 | Method and apparatus for detecting modem tones for implementation of a different billing structure for modem calls | — | 2001-07-10 |
| 6236357 | Automatic vehicle location system and method with reduced bandwidth requirement | — | 2001-05-22 |
| 5612995 | Method for activating a lamp on analog customer premises equipment by a digital signal | — | 1997-03-18 |
| 4464604 | Tractor work lighting with automatic deluminizing control | Thomas P. Hillstrom, Robert J. Wilson | 1984-08-07 |