Patents by Inventor Lazarus D. Thomas

Lazarus D. Thomas 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).

  • Method of restoring or repairing reflective glass
    Patent number: 4251572
    Abstract: Methods of restoring or repairing damaged areas in the coating of high performance reflective glass composed of a thin, transparent film such as a metal and/or a metal oxide deposited on a vitreous substrate. Damages to the film such as scratches, abrasive rubs and the like are covered with a compatible filler to substantially restore the light transmittance characteristics. The repaired areas are covered with a protective coating to increase their durability.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: February 17, 1981
    Assignee: Libbey-Owens-Ford Company
    Inventors: Siegfried H. Herliczek, Lazarus D. Thomas
  • Removing iridescent stains from vitreous surfaces
    Patent number: 4102706
    Abstract: Iridescent stains are removed from vitreous surfaces by contacting the surfaces with an aqueous solution of hydrochloric acid and sodium fluoride followed by rinsing the solution from the surfaces with water and, optionally, buffing the surfaces with an aqueous mixture of cerium oxide. The method provides benefits not only in cleaning efficiency but also in operational safety to personnel and absence of detrimental effects on surrounding building materials.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: July 25, 1978
    Assignee: Libbey-Owens-Ford Company
    Inventor: Lazarus D. Thomas