Patents by Inventor Malcolm L. Frost

Malcolm L. Frost 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).

  • Patent number: D270586
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: September 20, 1983
    Assignee: Rescue Services, Inc.
    Inventors: William A. Tatnall, Malcolm L. Frost