Patents by Inventor John V. Oldham

John V. Oldham 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).

  • Metabolic cage unit for a laboratory animal
    Patent number: 4785765
    Abstract: A laminar diffuser for use in a metabolic cage unit. The laminar diffuser includes an inclined serrated linear ramp which directs the urine to a urine collection vessel, and by its configuration, transports the feces past the urine collection vessel to a feces collection vessel, without mixing therebetween.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: November 22, 1988
    Assignee: Lab Products, Inc.
    Inventors: Neil E. Campbell, John V. Oldham