Patents by Inventor Joseph P. Lucas

Joseph P. Lucas 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).

  • Electrodepositable compositions
    Patent number: 4419468
    Abstract: The present invention discloses cataphoretic electrodeposition of metal articles wherein staining or discoloration particularly of light colors is prevented or reduced. The electrodepositable compositions of this invention comprise aqueous cationic paint dispersions blended with polyacids; the polyacids are introduced into electrodeposition baths by the addition of the acids thereto.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: December 6, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Joseph P. Lucas