Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Oil shale retorting process utilizing indirect heat transfer

Oil shale retorting process utilizing indirect heat transfer

US Patent 4459201 · Granted Jul 10, 1984

Estimated economic value: $22,767,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

High stress electrical oil2001
Method of in situ oil shale retort ignition with oxygen control1984
Separation of carbon dioxide and other acid gas components from hydrocarbon feed1981
Cement production from coal conversion residues1981
Production of ammonium sulfate1981
Hydrothermal alkali metal recovery process1980
Process for the production of an intermediate Btu gas1980
Process for the production of a chemical synthesis gas from coal1980