Patents by Inventor Laddie F. Dobbs

Laddie F. Dobbs 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).

  • Non-turbulent shut-off valve
    Patent number: 4776365
    Abstract: A non-turbulent fluid shut-off valve with a shrouded movable valve member outside the flow stream when in its open position.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: October 11, 1988
    Inventors: Leeland M. Bathrick, Laddie F. Dobbs
  • Flow shut-off valve
    Patent number: 4736766
    Abstract: A fluid shut-off valve and a strainer assembly mounted in the same body with the strainer easily removable when the valve is in its closed position.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: April 12, 1988
    Inventors: Leeland M. Bathrick, Laddie F. Dobbs