Patents by Inventor David Azar

David Azar 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).

  • Protecting rusty metal
    Patent number: 4073759
    Abstract: Rust or corroded metal is very effectively protected by a coating deposited from an emulsion of asphalt, acrylic resin and rubber containing a polyamine surface active agent. No sand blasting, pickling, preparatory coating or other extensive preparatory treatment of the rusty or corroded metal is needed. Uncorroded metal is also protected by the coating.
    Type: Grant
    Filed: June 3, 1976
    Date of Patent: February 14, 1978
    Assignee: Roadways International Corporation
    Inventors: James M. Lowry, David Azar