Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028340 | Process for treating sulfide-containing water to reduce sulfide emissions therefrom | — | 1991-07-02 |
| 5024769 | Method of treating an arsenic-containing solution | — | 1991-06-18 |
| 4978457 | Method of filtering a brine | John L. Featherstone | 1990-12-18 |
| 4874529 | Process and apparatus for reducing the concentration of suspended solids in clarified geothermal brine | John L. Featherstone, S. Timothy Spang, David G. Newell | 1989-10-17 |
| 4869066 | Method for the production of usable steam and non-toxic solids from geothermal brine | D. Stephen Pye, John L. Featherstone, Gregory A. Gritters, Daniel Hoyer, Morton M. Wong | 1989-09-26 |
| 4830766 | Use of reducing agents to control scale deposition from high temperature brine | John W. Jost | 1989-05-16 |
| 4756888 | Recovery of silver-containing scales from aqueous media | John W. Jost | 1988-07-12 |
| 4615808 | Acidification of steam condensate for incompatibility control during mixing with geothermal brine | John L. Featherstone | 1986-10-07 |
| 4537684 | Control of metal-containing scale deposition from high temperature brine | John W. Jost | 1985-08-27 |
| 4522728 | Acidifiction of steam condensate for incompatibility control during mixing with geothermal brine | John L. Featherstone | 1985-06-11 |
| 4500434 | Inhibiting scale precipitation from high temperature brine | John W. Jost | 1985-02-19 |