Patents by Inventor Alexander Ehrmann

Alexander Ehrmann 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: D313021
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: December 18, 1990
    Assignee: Alaron, Inc.
    Inventor: Alexander Ehrmann