Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5088498 | Ultrasonic plethysmograph | David J. Phillips, John Kansky | 1992-02-18 |
| 4757714 | Speed sensor and head-mounted data display | Peter K. Purdy | 1988-07-19 |
| 4722222 | Ski speedometer | Peter K. Purdy | 1988-02-02 |