Patents by Inventor Neil D. Helm

Neil D. Helm 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: D408684
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: April 27, 1999
    Assignee: Sinclair & Rush, Inc.
    Inventor: Neil D. Helm