Patents by Inventor Christian Friedrich Engeln

Christian Friedrich Engeln 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).

  • Method and control device for determining a register error
    Patent number: 7162956
    Abstract: A method and control device for determining a register error, whereby at least one register mark is printed and at least one sensor records the register mark, whereby the sheet edge of the sheet is recorded by the sensor, and the register error is determined from the sensor data and the target data.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: January 16, 2007
    Assignee: Eastman Kodak Company
    Inventors: Dieter Karl-Heinz Dobberstein, Walter Dworschak, Christian Friedrich Engeln, Heiko Hunold, Patrick Metzler, Karlheinz Walter Peter, Rolf Johannes Spilz, Stefan Theden
  • Process and mechanism for scanning a register mark
    Publication number: 20040190920
    Abstract: A process and mechanism to scan at least one register mark on a printing medium in a printing machine, whereby at least one register mark is imprinted on the first form side of the printing medium and the register mark is scanned by an initial sensor, whereby when the printing medium is inverted, the register mark on the first form side is scanned, and the register mark on the reverse side is ascertained using the register mark on the first form side.
    Type: Application
    Filed: February 9, 2004
    Publication date: September 30, 2004
    Inventors: Christian Friedrich Engeln, Rolf Johannes Spilz