Patents by Inventor Karl Heinz Gulden

Karl Heinz Gulden 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).

  • Semiconductor laser device and method for fabrication thereof
    Patent number: 6365427
    Abstract: The present invention relates to a semiconductor laser device and a method for fabrication thereof, wherein the semiconductor laser device exhibits an improved mode selectivity.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: April 2, 2002
    Assignee: Avalon Photonics Ltd.
    Inventors: Hans Peter Gauggel, Karl Heinz Gulden