Patents by Inventor Mathew Stephen

Mathew Stephen 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).

  • Patent number: 5753019
    Abstract: Mirror resin backings containing antioxidant pigments which are cyanamide derivatives of metals, are protective backing coatings for glass substrates and mirrors. The resin backings are melamine based resin coatings which provide anti-corrosion protection for the metal layers with metal cyanamide antioxidant pigments.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: May 19, 1998
    Assignee: Sureguard, Inc.
    Inventors: Mathew Stephen, Ole Gerhard Torgussen
  • Patent number: 5632810
    Abstract: Mirror resin backings containing antioxidant pigments which are cyanamide derivatives of metals, are protective backing coatings for glass substrates and mirrors. The resin backings are melamine based resin coatings which provide anti-corrosion protection for the metal layers with metal cyanamide antioxidant pigments.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: May 27, 1997
    Assignee: Sureguard, Inc.
    Inventors: Mathew Stephen, Ole G. Torgussen