Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7330720 | Time zone based phone services | — | 2008-02-12 |
| 4521643 | Apparatus for transmitting information via telephone lines | Claude Dupuis | 1985-06-04 |
| 4480196 | Input protection circuits for integrated circuit devices | David Robin Whiting | 1984-10-30 |
| 4291299 | Analog to digital converter using timed level changes | William P. Thomas | 1981-09-22 |
| 4249630 | Plow guidance system | James Hugh Lougheed | 1981-02-10 |