Patents by Inventor Leo A. Meyer

Leo A. Meyer 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
    Patent number: 6765720
    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: Grant
    Filed: January 8, 2001
    Date of Patent: July 20, 2004
    Assignee: 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. Davis
  • Light directing construction having corrosion resistant feature
    Patent number: 6590711
    Abstract: The present invention is a light directing construction for use in a display apparatus. The light directing construction includes a light directing film that has a prismatic structure having two sides, where one side includes saw tooth formations having tilted surfaces, and a metal coating on the side of the prismatic substrate having the saw-tooth formations. A corrosion-resistant feature is provided on the light directing construction to minimize the effects of corrosion experienced in salt atmospheres. In a first embodiment of the invention, the light directing construction includes an intermediate layer positioned between the light directing film and the metal coating. In a second embodiment of the invention, a peripheral polymeric coating is provided on the light directing constriction. This peripheral coating can be formed with a laser.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: July 8, 2003
    Assignee: 3M Innovative Properties Co.
    Inventors: Timothy J. Gardner, Richard F. Griffith, Lavern L. Linse, Leo A. Meyer, James A. Stevenson
  • Light directing construction having corrosion resistant feature
    Publication number: 20030095332
    Abstract: The present invention is a light directing construction for use in a display apparatus. The light directing construction includes a light directing film that has a prismatic structure having two sides, where one side includes saw tooth formations having tilted surfaces, and a metal coating on the side of the prismatic substrate having the saw-tooth formations. A corrosion-resistant feature is provided on the light directing construction to minimize the effects of corrosion experienced in salt atmospheres. In a first embodiment of the invention, the light directing construction includes an intermediate layer positioned between the light directing film and the metal coating. In a second embodiment of the invention, a peripheral polymeric coating is provided on the light directing constriction. This peripheral coating can be formed with a laser.
    Type: Application
    Filed: January 3, 2003
    Publication date: May 22, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Timothy J. Gardner, Richard F. Griffith, Lavern L. Linse, Leo A. Meyer, James A. Stevenson
  • 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
  • Glass microspheres for use in films and projection screen displays and methods
    Patent number: 6204971
    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: Grant
    Filed: May 14, 1999
    Date of Patent: March 20, 2001
    Assignee: 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. Davis
  • Glass microspheres for use in films and projection screen displays and methods
    Patent number: RE38245
    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: Grant
    Filed: January 17, 2002
    Date of Patent: September 9, 2003
    Assignee: 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. Davis