Patents by Inventor Anthony B. Sharrotta

Anthony B. Sharrotta 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).

  • Hydrophilically end-capped polyurethane thickeners
    Patent number: 6316540
    Abstract: This invention relates to polyurethane thickeners having particular utility in paints and coatings comprising the reaction product of an isocyanate functional material, a polyether polyol, and a difunctional hydrophilic endcapping material that is reactive with isocyanates.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: November 13, 2001
    Assignee: The Sherwin-Williams Company
    Inventors: Randolph B. Krafcik, Revathi Tomko, Paul M. Kayima, Anthony B. Sharrotta, Hyeong-Chan Youn