Patents by Inventor Friedrich F. Frenkler

Friedrich F. Frenkler 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).

  • Printer
    Patent number: D316563
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: April 30, 1991
    Assignee: Seiko Epson Corporation
    Inventors: Friedrich F. Frenkler, Hitoshi Igarashi, Kaneko Isao
  • Printer for electronic computer
    Patent number: D321714
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: November 19, 1991
    Assignee: Seiko Epson Corporation
    Inventors: Friedrich F. Frenkler, Masayuki Ono, Akira Suzuki, Noritaka Uchibori
  • Automatic paper feeder for printer
    Patent number: D321902
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: November 26, 1991
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Ono, Akira Suzuki, Noritaka Uchibori, Friedrich F. Frenkler