Patents Represented by Attorney Charles R. Wolfe, Jr.

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  • Shale oil dearsenation process
    Patent number: 4618410
    Abstract: An improved process for shale oil dearsenation comprises coking a retorted hale oil stream following by contacting the liquid coker product with water. Water washing is preferably carried out under ambient conditions to achieve a reduction to less than 3 ppm w soluble arsenic.
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: October 21, 1986
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Frederick E. Brinckman, Thomas F. Degnan, Jr., Carl S. Weiss
  • Visual field testing device
    Patent number: 4429961
    Abstract: An improved visual field testing device is disclosed. The device is a modification of an automatic Goldmann-type perimeter device which permits operation by the physician or technician.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: February 7, 1984
    Inventor: Larry A. Sheingorn
  • Device for blind spot delineation
    Patent number: 4392725
    Abstract: A self-contained, solid state device, with no moving parts, that determines visual field defects is disclosed. The device employs a tangent screen containing LEDs which are illuminated in sequence to test the visual field of the patient. The device utilizes a memory unit for recording and displaying the test results.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: July 12, 1983
    Inventor: Larry A. Sheingorn
  • Marcus-Gunn quantitator
    Patent number: 4253470
    Abstract: A device for quantitating afferent optic nerve defects is disclosed. The device is particularly adapted for use in examining optic nerve defects which produce a Marcus-Gunn pupil.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: March 3, 1981
    Inventor: Larry A. Sheingorn