Patents by Inventor John F. Patzer, II

John F. Patzer, II has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Steam stripping process for solids separation in oil shale processing
    Patent number: 4687569
    Abstract: A process for separating solids from hydrocarbons in a slurry of hydrocarbonaceous solids and solvent is disclosed comprising atomizing the slurry, introducing and mixing the atomized slurry and superheated steam in a stripping zone, vaporizing the hydrocarbons, and separately removing the vapors and the solids. The process is particularly useful in an oil shale recovery process.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: August 18, 1987
    Assignee: Chevron Research Company
    Inventors: John F. Patzer, II, William G. Moon
  • Recovery of oil from oil shale
    Patent number: 4238315
    Abstract: A process for recovering oil from oil shale containing kerogen which comprises bringing a mixture of oil shale and solvent to a temperature in the range of about 385.degree. to about 440.degree. C. in a time period of less than about 10 minutes, maintaining said mixture at a temperature in the range of about 385.degree. to about 440.degree. C. and a pressure in the range of about 250 to about 2000 pounds per square inch gauge (about 1.72 MPa to about 13.8 MPa) for a period of about 20 minutes to about two hours and thereafter recovering the resulting oil.
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: December 9, 1980
    Assignee: Gulf Research & Development Company
    Inventor: John F. Patzer, II