Patents by Inventor Roger John Malcolm

Roger John Malcolm 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).

  • Dental retractor
    Patent number: D803397
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: November 21, 2017
    Assignee: Helping Hand, LLC
    Inventors: Roger John Malcolm, Bruce James Crispin, Kristi Ann Crispin-Blas