Patents by Inventor Thomas F. Tiwald

Thomas F. Tiwald 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).

  • Horizontal attenuated total reflection system
    Patent number: 7920264
    Abstract: Horizontally oriented attenuated total reflection (HATR) system applied in spectroscopic ellipsometer or polarimeter systems, and methodology of use.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: April 5, 2011
    Assignee: J.A. Woollam Co., Inc.
    Inventor: Thomas F. Tiwald