Patents by Inventor William H. Wingo

William H. Wingo 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).

  • Easy to disperse polycarboxylic acid thickeners
    Patent number: 5349030
    Abstract: An interpolymer of at least one olefinically unsaturated carboxylic acid containing at least one activated carbon-to-carbon olefinic double bond and at least one carboxyl group, in an amount of more than 15% by weight based upon the weight of the interpolymer, and at least one steric stabilizer surfactant having at least one hydrophilic moiety and at least one hydrophobic moiety and a linear block or a random comb configuration, or mixtures thereof, made by polymerizing olefinically unsaturated carboxylic acid monomers in an organic media, in the presence of free a radical forming catalyst, and the steric stabilizer.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: September 20, 1994
    Assignee: The B. F. Goodrich Company
    Inventors: Carl J. Long, II, Zahid Amjad, William F. Masler, III, William H. Wingo
  • Easy to disperse polycarboxylic acid thickeners
    Patent number: 5288814
    Abstract: An interpolymer of at least one olefinically unsaturated carboxylic acid containing at least one activated carbon-to-carbon olefinic double bond and at least one carboxyl group, in an amount of more than 15% by weight based upon the weight of the interpolymer, and at least one steric stabilizer surfactant having at least one hydrophilic moiety and at least one hydrophobic moiety and a linear block or a random comb configuration, or mixtures thereof, made by polymerizing olefinically unsaturated carboxylic acid monomers in an organic media, in the presence of free a radical forming catalyst, and the steric stabilizer.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: February 22, 1994
    Assignee: The B. F. Goodrich Company
    Inventors: Carl J. Long, II, Zahid Amjad, William F. Masler, III, William H. Wingo