Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5595717 | Controlled precipitation of amorphous silica from geothermal fluids or other aqueous media containing silicic acid | Ross T. Harper, James Howard Johnston | 1997-01-21 |
| 5200165 | Controlled precipitation of amorphous, silica from geothermal fluid or aqueous media having a silicic acid concentration | Ross T. Harper, James Howard Johnston | 1993-04-06 |