Patents by Inventor George E. Petty

George E. Petty 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).

  • Method and apparatus for testing wells
    Patent number: RE29562
    Abstract: A method and apparatus for testing offshore wells where variations in well annulus pressure are utilized to control the valving operation of a testing tool and entrap a formation sample.A confined body of pressurized fluid positoned in a testing string is utilized to predetermine the annulus pressure changes which will effect said valving and sample entrapping operations.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: March 7, 1978
    Assignee: Halliburton Company
    Inventors: Gary Q. Wray, George E. Petty