Patents by Inventor David N Herzer

David N Herzer 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: D415551
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: October 19, 1999
    Inventors: David N Herzer, Janice L Eggers, Andrea J McCready