Patents by Inventor Gomer S. Frank

Gomer S. Frank 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).

  • Visual color comparator with integral dual dip cells
    Patent number: 3964831
    Abstract: A visual color comparator for testing the condition of a liquid and utilizing dual liquid dip cells which are integrally connected together so that identical sample quantities of a liquid can be obtained by dipping the dual cells into the liquid, and a mounting for the color standards which provide for easy change of color standards when the test is changed.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: June 22, 1976
    Assignee: Aquality, Inc.
    Inventor: Gomer S. Frank