Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5944132 | Method and apparatus for controlling robotic golf caddy apparatus | Frederick J. Fowler | 1999-08-31 |
| 5711388 | Robotic golf caddy apparatus and method | Frederick J. Fowler | 1998-01-27 |
| 5103474 | Drive-by personnel monitoring system with radio link | Veronica Stoodley | 1992-04-07 |
| 5075670 | Personnel monitoring tag with tamper detection and secure reset | David S. Bower | 1991-12-24 |
| 5032823 | Secure personnel monitoring system | David S. Bower, Donald E. Garee | 1991-07-16 |
| 4924211 | Personnel monitoring system | — | 1990-05-08 |
| 4696385 | Electronic coin detection apparatus | — | 1987-09-29 |
| 4678994 | Methods and apparatus employing apparent resonant properties of thin conducting materials | — | 1987-07-07 |
| 4569522 | Gaming device using visible randomization | — | 1986-02-11 |
| 4359148 | Coin acceptor or rejector | — | 1982-11-16 |
| 4354587 | Coin acceptor or rejector | — | 1982-10-19 |
| 4334604 | Coin detecting apparatus for distinguishing genuine coins from slugs, spurious coins and the like | — | 1982-06-15 |
| 4326621 | Coin detecting apparatus for distinguishing genuine coins from slugs, spurious coins and the like | — | 1982-04-27 |