Patents by Inventor Roger Hugh Emerson

Roger Hugh Emerson 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).

  • Optically isotrophic polycarbonate films and a method for the production thereof
    Patent number: 7005180
    Abstract: Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: February 28, 2006
    Assignee: Roehm GmbH & Co., KG
    Inventors: Uwe Numrich, Klaus Hofmann, Roger Hugh Emerson, Thomas Pfaff, Michael Meier-Kaiser
  • Optically isotropic polycarbonate films and a method for the production thereof
    Patent number: 6613264
    Abstract: Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films are used as covering films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: September 2, 2003
    Assignee: Roehm GmbH & Co. KG
    Inventors: Uwe Numrich, Klaus Hofmann, Roger Hugh Emerson, Thomas Pfaff, Michael Meier-Kaiser
  • Optically isotropic polycarbonate films and a method for the production thereof
    Publication number: 20030031849
    Abstract: Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.
    Type: Application
    Filed: August 28, 2002
    Publication date: February 13, 2003
    Applicant: ROEHM GMBH & CO., KG
    Inventors: Uwe Numrich, Klaus Hofmann, Roger Hugh Emerson, Thomas Pfaff, Michael Meier-Kaiser