Patents by Inventor Peter Huttel

Peter Huttel 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).

  • Arrangement for projecting a test pattern onto a surface to be investigated
    Patent number: 5493400
    Abstract: An arrangement generates a projection beam path on the projection objective outside of the optical axis. This is achieved by mounting an optically transparent wedge forward or rearward of the test pattern. The wedge can be rotated with respect to its orientation by 180.degree..
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: February 20, 1996
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Bernhard Grobler, Hartmut Heinz, Peter Huttel, Gunter Schoppe