Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593509 | Portable thermo-photovoltaic power source | Anthony C. Zuppero, C. Rodger Barklund, Gary D. Seifert | 1997-01-14 |
| 4850551 | Propulsion system for a buoyant vehicle | Leo Celniker | 1989-07-25 |