Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4635720 | Heavy oil recovery process using intermittent steamflooding | — | 1987-01-13 |
| 4630778 | Separation of mixtures of bituminous coal and lower rank coal by selective chemical comminution | — | 1986-12-23 |
| 4623283 | Method for controlling water influx into underground cavities | — | 1986-11-18 |
| 4533084 | Method for comminuting bituminous coal using an aqueous methanol solution | Joseph G. Savins | 1985-08-06 |
| 4400034 | Coal comminution and recovery process using gas drying | — | 1983-08-23 |