Patents by Inventor Ranson R. Fullinwider

Ranson R. Fullinwider 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).

  • Retrievable subsurface well casing slip and packer apparatus and method
    Patent number: 4576230
    Abstract: A retrievable subsurface well casing slip and packer apparatus and method having upper and lower interconnected and expandable slips which have a combined circumferential engagement of a well conduit greater than or equal to 360.degree. and a control means for releasing engaging means for engagement with a well bore and permitting rotation of a running string in clockwise and counterclockwise directions without releasing the engagement means for setting the apparatus in a well bore.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: March 18, 1986
    Inventors: William T. Tapp, Ranson R. Fullinwider