Patents by Inventor Omar B. Shadid

Omar B. Shadid 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).

  • Process for preparing rigid polyurethane foams
    Patent number: 4704411
    Abstract: This invention is directed to a process by preparing a rigid polyurethane foam which comprise reacting a polyisocyanate with a polyol in the presence of a blowing agent, a polymerization catalyst and a surfactant.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: November 3, 1987
    Assignee: The Dow Chemical Company
    Inventors: Michael A. P. Gansow, Omar B. Shadid, Johannes E. G. Spork