Patents by Inventor Stanley L. Blaszczyk

Stanley L. Blaszczyk 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).

  • Alkaline cleaner for aluminum
    Patent number: 4762638
    Abstract: A cleaning composition bath, concentrate for its preparation, and method of use of an aqueous alkaline cleaner comprising an ethylenediaminetetraacetic acid or nitrilotriacetic acid alkali metal salt, an inorganic alkali metal phosphate, a surfactant and optionally an aluminum sequestrant, other inorganic salts and an alkali metal hydroxide, if needed, to adjust the pH of the composition to at least 11.0.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: August 9, 1988
    Assignee: Amchem Products, Inc.
    Inventors: David Y. Dollman, Stanley L. Blaszczyk