Patents by Inventor Martin Schraer

Martin Schraer 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: D421594
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: March 14, 2000
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Ingmar Knop, Martin Schraer