Patents by Inventor Richard Hreha

Richard Hreha 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).

  • Shape Memory Cyanate Ester Copolymers
    Publication number: 20080021188
    Abstract: Cyanate ester shape memory polymers (SMP). The polymers are preferably formed via reaction of a multifunctional cyanate ester and a mono functional cyanate ester and exist, in one inventive aspect, in the form of a cross-linked thermoset network. Optional catalysts and structural modifiers may be added to the reaction moieties to help control the glass transition temperature of the resulting SMP to greater than 0° C., preferably from about 150° C.-300° C.
    Type: Application
    Filed: May 5, 2005
    Publication date: January 24, 2008
    Inventors: Tat Tong, Richard Hreha, Benjamin Vining