Patents by Inventor Ernest K. Hairr

Ernest K. Hairr 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).

  • Automatic temperature control actuator
    Patent number: D317723
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: June 25, 1991
    Assignee: Buehler Products, Inc.
    Inventors: Murray J. Marvin, Ernest K. Hairr
  • Automatic temperature control actuator
    Patent number: D317724
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: June 25, 1991
    Assignee: Buehler Products, Inc.
    Inventors: Murray J. Marvin, Ernest K. Hairr