Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320363 | Post hole digger | — | 1994-06-14 |
| 5273331 | Post hole digger | — | 1993-12-28 |
| 4429540 | Multiple-stage pump compressor | — | 1984-02-07 |
| 4413952 | Small temperature differential heat-powered compressor | — | 1983-11-08 |
| 4390323 | Multiple-stage small temperature differential heat-powered pump | — | 1983-06-28 |
| 4372114 | Generating system utilizing multiple-stage small temperature differential heat-powered pumps | — | 1983-02-08 |
| 4347045 | Multiple-stage small temperature differential heat-powered pump | — | 1982-08-31 |