Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4923510 | Treatment of refractory carbonaceous sulfide ores for gold recovery | Gopalan Ramadorai, Ronald L. Atwood, Rong Wan, Sevket Acar | 1990-05-08 | |
| 4902345 | Treatment of refractory carbonaceous and sulfidic ores or concentrates for precious metal recovery | Rong Wan | 1990-02-20 | $32,053,000 |
| 4463885 | Ski carrier strap | Joel E. Ball | 1984-08-07 | |
| 4366050 | Scheelite flotation | Eric J. Olin, Harry B. Carson | 1982-12-28 | $12,455,000 |