Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5388528 | Vehicle for use in pipes | Ronald E. Pelrine, Lawrence S. Gullman | 1995-02-14 |
| 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 |
| 5220869 | Vehicle adapted to freely travel three-dimensionally and up vertical walls by magnetic force and wheel for the vehicle | Ronald E. Pelrine, Lawrence S. Gullman | 1993-06-22 |
| 5176143 | Tonometer transducer positioning system | Joseph S. Eckerle, Roy D. Kornbluh, Rudolf Elbrecht | 1993-01-05 |
| 5016869 | Human bipedal locomotion device | G. John Dick | 1991-05-21 |