Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842615 | Utilization of low rank and waste coals in transportable fluidic fuel systems | Edmond G. Meyer, Lee G. Meyer | 1989-06-27 |
| 4832831 | Method of refining coal by hydrodisproportionation | Edmond G. Meyer, Lee G. Meyer | 1989-05-23 |