Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851129 | Process for the detoxification of effluents from ore processing operations with hydrogen peroxide, using a magnetic pre-separation stage | Roy Norcross | 1989-07-25 |
| 4822496 | Process for the treatment of effluent containing cyanide and toxic metals, using hydrogen peroxide and trimercaptotriazine | Roy Norcross, Gerhard Scherer, Friedrich W. Merz, Stephen Gos | 1989-04-18 |