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Patent applications and USPTO patent grants for Justheim; Clarence I..The latest application filed is for "method of retorting oil shale by velocity flow of super-heated air".
Patent | Date |
---|---|
Method of retorting oil shale by velocity flow of super-heated air Grant 4,384,614 - Justheim May 24, 1 | 1983-05-24 |
Method For The In-situ Treatment Of Hydrocarbonaceous Materials Grant 3,766,982 - Justheim October 23, 1 | 1973-10-23 |
Method And Apparatus For In Situ Distillation And Hydrogenation Of Carbonaceous Materials Grant 3,598,182 - Justheim August 10, 1 | 1971-08-10 |
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