Patents by Inventor William J. Yapp

William J. Yapp 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).

  • Water based adhesion promoting compositions
    Patent number: 5288780
    Abstract: An adhesion promoting composition for use on polyolefin substrates which is formulated with a chlorinated polyolefin in a water-based emulsion.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: February 22, 1994
    Assignee: Tioga International, Inc.
    Inventors: Richard E. Jarzombek, William J. Yapp, David W. Helms
  • Process for coating high solids coating compositions
    Patent number: 4243705
    Abstract: This invention is directed to a high solids coating composition and more specifically to a coating comprising low molecular weight hydroxy-containing polyesters, an epoxy resin and at least one crosslinking agent consisting of an isocyanate, an alkoxy alkyl melamine, or an amino condensation product.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: January 6, 1981
    Assignee: The Sherwin-Williams Company
    Inventors: William J. Yapp, Robert E. McDonald
  • High solids coating compositions
    Patent number: 4169825
    Abstract: This invention is directed to a high solids coating composition and more specifically to a coating comprising low molecular weight hydroxy-containing polyesters, an epoxy resin and at least one crosslinking agent consisting of an isocyanate, an alkoxy alkyl melamine, or an amino condensation product.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: October 2, 1979
    Assignee: The Sherwin-Williams Company
    Inventors: William J. Yapp, Robert E. McDonald