Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869066 | Method for the production of usable steam and non-toxic solids from geothermal brine | D. Stephen Pye, John L. Featherstone, Darrell L. Gallup, Daniel Hoyer, Morton M. Wong | 1989-09-26 |
| 4776961 | Process for treating geothermal brine in two phase brine separators | John L. Featherstone, Jessie P. Reverente | 1988-10-11 |
| 4619769 | Process for regenerating media filters used to filter geothermal brine | Jose M. Perez | 1986-10-28 |
| 4573803 | Injection nozzle | Walter Edward Nellis, John L. Featherstone | 1986-03-04 |
| 4564298 | Hydrofoil injection nozzle | Walter Edward Nellis, John L. Featherstone | 1986-01-14 |