Patents by Inventor Stanley B. McCaleb

Stanley B. McCaleb 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).

  • Repulsing clays on drill bits
    Patent number: RE29151
    Abstract: Bit balling is prevented by impressing a negative electrical charge on the drill bit by the use of bi-metallic electromotive potential differences, batteries or other electrical energy sources.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: March 15, 1977
    Assignee: Sun Oil Company
    Inventor: Stanley B. McCaleb