Patents by Inventor Robert Haydu

Robert Haydu 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).

  • Protective coating for metals
    Patent number: 4676842
    Abstract: Enhanced resistance to the corrosion of metals such as aluminum, zinc, magnesium and the like is achieved by the application of a metallo-gel film. The composition of the coating uniquely includes liquid manganese nitrate and sodium tungstate as accelerators which accelerate and activate the chromate sources to coat the metal surface being treated.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: June 30, 1987
    Inventor: Robert Haydu