Patents per Year
Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5724935 | Reciprocating piston assembly | — | 1998-03-10 |
| 5245962 | Variable length connecting rod for internal combustion engine | — | 1993-09-21 |
| 5156121 | Piston-connecting rod assembly | — | 1992-10-20 |
| 5142853 | Tool drive assembly and related tool drive linkage, tool work implement assembly and tool | — | 1992-09-01 |
| 4587951 | Circular arc solar concentrator | Donald W. Townsend | 1986-05-13 |
| 4579106 | Solar collector with drive system | Donald W. Townsend | 1986-04-01 |
| 4538886 | Circular arc solar concentrator | Donald W. Townsend | 1985-09-03 |
| 4462345 | Energy transfer device utilizing driveshaft having continuously variable inclined track | — | 1984-07-31 |