Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490237 | Process for recovering heat from the combustion of residual carbon in oil depleted shale | Albert C. Mengon, deceased | 1984-12-25 |
| 4439307 | Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale | Albert C. Mengon, deceased | 1984-03-27 |
| 4436611 | Process for heating recycle gas in oil shale retorting | Mark Venetti | 1984-03-13 |
| 4389243 | Method for the flash oxidation of metal concentrates | — | 1983-06-21 |
| 4249722 | Apparatus for the flash oxidation of metal concentrates | — | 1981-02-10 |
| 4199352 | Autogenous process for conversion of metal sulfide concentrates | — | 1980-04-22 |