Patents by Inventor Justin M. Dillier

Justin M. Dillier 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).

  • Downhole temperature measurements
    Patent number: 4811598
    Abstract: An apparatus is disclosed for developing a temperature profile of a well. That apparatus has a spring bow centralizer, wherein the bow of the centralizer contacts the sidewall of the well, and it has a temperature probe attached to the underside of the bow opposite to a point of contact with the sidewall. In one embodiment, the temperature probe is attached to the underside of the bow with studs and a shim steel backing. That temperature probe is a platinum resistance thermometer surface sensor less than 0.05 inches thick coated with a polyimide insulator.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: March 14, 1989
    Assignee: Chevron Research Company
    Inventors: Justin M. Dillier, Richard H. Clark