Patents by Inventor Willfried Ender

Willfried Ender 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).

  • Support stand for a loudspeaker
    Patent number: D253323
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: November 6, 1979
    Assignee: Firma Andreas Hofmann Metallwarenfabrik
    Inventors: Thea Blatzer, Willfried Ender, Gerhard Ketnath