Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4283017 | Selective flotation of cubanite and chalcopyrite from copper/nickel mineralized rock | Keith W. Sarbutt, Derrick B. Smith | 1981-08-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4283017 | Selective flotation of cubanite and chalcopyrite from copper/nickel mineralized rock | Keith W. Sarbutt, Derrick B. Smith | 1981-08-11 |