Patents by Inventor Douglas Alan Fischer

Douglas Alan Fischer 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).

  • Chromogenic window assembly construction and other chromogenic devices
    Patent number: 6493128
    Abstract: A chromogenic window panel assembly, and a chromogenic skylight each includes an outer panel and a chromogenic member having an optical property which varies according to an applied signal. A chromogenic light pipe includes a light harvesting member and a chromogenic member having an optical property which varies according to an applied signal. A chromogenic vehicle sunroof, a chromogenic aircraft window assembly, and a chromogenic window assembly each includes a panel having a particular panel contour corresponding to a surface contour and a chromogenic panel having an optical property which varies according to an applied signal. A chromogenic block includes two panels and a chromogenic panel having an optical property which varies according to an applied signal.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: December 10, 2002
    Assignee: Donnelly Corporation
    Inventors: Anoop Agrawal, Juan Carlos Lopez Tonazzi, Robert Steven LeCompte, Carl Baertelin, Douglas Alan Fischer
  • Chromogenic window assembly construction and other chromogenic devices
    Patent number: 6039390
    Abstract: A chromogenic window panel assembly, and a chromogenic skylight each includes an outer panel and a chromogenic member having an optical property which varies according to an applied signal. A chromogenic light pipe includes a light harvesting member and a chromogenic member having an optical property which varies according to an applied signal. A chromogenic vehicle sunroof, a chromogenic aircraft window assembly, and a chromogenic window assembly each includes a panel having a particular panel contour corresponding to a surface contour and a chromogenic panel having an optical property which varies according to an applied signal. A chromogenic block includes two panels and a chromogenic panel having an optical property which varies according to an applied signal.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: March 21, 2000
    Assignee: Donnelly Corporation
    Inventors: Anoop Agrawal, Juan Carlos Lopez Tonazzi, Robert Steven LeCompte, Carl Baertelin, Douglas Alan Fischer