Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4531900 | Rotary engine cooling system | Richard M. Gigon, Edward J. Blum | 1985-07-30 |
| 4511298 | Protective binder | — | 1985-04-16 |
| 4483637 | Binder for business forms | William C. Updegrave, Jerome E. Froehlich | 1984-11-20 |
| 4403928 | Multi-unit rotary mechanism | — | 1983-09-13 |
| 4268231 | Multi-unit rotary piston mechanism and mainshaft coupling therefor | Howard Corwin | 1981-05-19 |
| 4233023 | Photoflash lamp having expandable burning volume | Peter D. Johnson | 1980-11-11 |
| 4213370 | Molded plastic guitars | — | 1980-07-22 |