Patents by Inventor Gene D. Russell

Gene D. Russell 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).

  • Photodensitometer for minimizing the refractive effects of a fluid sample
    Patent number: 4730921
    Abstract: An automated vertical photo densitometer for reading solutions contained in microwell plates. The densitometer utilizes an optical system for minimizing the optical effect of a meniscus on the fluid sample. The invention also discloses a method for determining a centrally located position of a microwell beneath an interrogating beam of light by controlling the size of the light beam and by stepping the well through the beam. A measurement of the light intensity received by a detector is taken at each step. A maximum light intensity value is selected as corresponding to a well position wherein a central area of the fluid sample is substantially within the interrogating beam.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: March 15, 1988
    Assignee: Genetic Systems, Inc.
    Inventors: Gerald L. Klein, Gene D. Russell, Steven R. Day, Jerrold D. Liebermann