Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721420 | Pipeline transportation of coarse coal-liquid carbon dioxide slurry | Richard W. Hanks, R. Peter Stickles | 1988-01-26 |
| 4546612 | Method of producing free flowing solids | — | 1985-10-15 |
| 4424126 | Apparatus for removing heavy metals from aqueous liquids | Ravindra M. Nadkarni | 1984-01-03 |
| 4377356 | Method and apparatus for moving coal including one or more intermediate periods of storage | — | 1983-03-22 |
| 4278539 | Method for removing heavy metals from aqueous liquids | Ravindra M. Nadkarni | 1981-07-14 |
| 4206610 | Method and apparatus for transporting coal as a coal/liquid carbon dioxide slurry | — | 1980-06-10 |