Patents by Inventor Tabitha H. Riggio

Tabitha H. Riggio 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).

  • Blocked polyisocyanate
    Patent number: 6894138
    Abstract: The present invention is directed to a blocked polyisocyanate based on nonane triisocyanate. More particularly, the invention is directed to a blocked polyisocyanate useful in solvent borne coating compositions and comprising the reaction product of: a) nonane triisocyanate; b) a pyrazole blocking agent; and c) a diol or polyol.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 17, 2005
    Assignee: Bayer MaterialScience LLC
    Inventors: Richard R. Roesler, Patricia B. Jacobs, Dinesh Pethiyagoda, Tabitha H. Riggio, Marianne M. Salek, Emery Yuhas