Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676225 | Method and apparatus for enhancing the pumping action of a geyser pumped tube | — | 1987-06-30 |
| 4478211 | Self-pumping solar heating system with geyser pumping action | Eldon L. Haines | 1984-10-23 |