Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4562802 | Flexible cylinder engine | — | 1986-01-07 |
| 4481792 | Cold storage pack | Theodore C. Groeger | 1984-11-13 |
| 4453508 | Flexible cylinder engine | — | 1984-06-12 |
| 4375035 | Tetrahedral windmill | — | 1983-02-22 |