Patents by Inventor William S. Bobo

William S. Bobo 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).

  • Esterifying epoxy resin with carboxyl polymer and quenching
    Patent number: 5686511
    Abstract: A method of preparing a water-dispersible epoxy resin coating composition comprises:(a) Reacting an epoxy polymer with a carboxyl bearing polymer in the presence of an esterification catalyst;(b) Quenching with an excess of tertiary amine before the esterification reaction is completed; and(c) adding water to form an aqueous dispersion.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: November 11, 1997
    Assignee: The Valspar Corporation
    Inventor: William S. Bobo
  • Interior can coating compositions containing cyclodextrins
    Patent number: 5177129
    Abstract: The flavor protecting properties of interior container coating compositions are improved by the inclusion of cyclodextrins in the composition.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: January 5, 1993
    Assignee: The Valspar Corporation
    Inventor: William S. Bobo, Jr.