Patents by Inventor Thomas N. David

Thomas N. David 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).

  • Glass microspheres for use in films and projection screen displays
    Publication number: 20010015846
    Abstract: Glass microspheres and rear projection screens containing glass microspheres, which combine a desirable index of refraction (preferably, no greater than about 1.70) and low levels of defects (e.g., bubbles, visible haziness, frostiness, or opacity, substantially nonspherical shapes) upon formation are provided. Also provided is a coating method of placing microspheres on a film for use in a rear projection screen.
    Type: Application
    Filed: January 8, 2001
    Publication date: August 23, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Geoffrey P. Morris, Jacqueline C. Rolfs, Leo A. Meyer, Robert S. Moshrefzadeh, Hsin-Hsin Chou, Billy J. Tompkins, Thomas N. David