Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355807 | Vehicle adapted to freely travel three-dimensionally by magnetic force and wheel for the vehicle | Ronald E. Pelrine, Lawrence S. Gullman | 1994-10-18 |
| 5284096 | Vehicle for use in pipes | Ronald E. Pelrine, Lawrence S. Gullman | 1994-02-08 |
| 5280527 | Biometric token for authorizing access to a host system | Lawrence S. Gullman, Norman Douglass Fast | 1994-01-18 |