Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4696485 | Oscillating weight carriers | — | 1987-09-29 |
| 4692678 | Closed loop servo control system | — | 1987-09-08 |
| D287488 | Telephone | Guillermo F. Brignole, Thomas P. Eisenstadt | 1986-12-30 |
| D286774 | Wall telephone | Eric H. Geis, Thomas P. Eisenstadt, Kurt Kauffman | 1986-11-18 |
| 4621825 | Oscillating skateboard | — | 1986-11-11 |
| 4616153 | Closed-loop linear position servomotor | — | 1986-10-07 |
| 4451055 | Propulsion means actuated by weight | — | 1984-05-29 |
| 4354348 | Solar space vehicle | — | 1982-10-19 |
| 4244497 | Ball rack for a bicycle | — | 1981-01-13 |