Patents by Inventor Randall T. Markum

Randall T. Markum 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: D263494
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: March 23, 1982
    Assignee: Emerson Electric Co.
    Inventors: Randall T. Markum, Yogesh P. Patel