Patents by Inventor Calvin L. Stegemoeller, III

Calvin L. Stegemoeller, III 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).

  • Soft-sided proppant container
    Patent number: D783772
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: April 11, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Calvin L. Stegemoeller, III, Thomas W. Hawkins, Bryan Chapman Lucas, Wesley John Warren