Patents by Inventor Eugene S. Stevens

Eugene S. Stevens 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).

  • Extruded starch-lignin foams
    Patent number: 10400105
    Abstract: Extruded starch foams are well known as biodegradable alternatives to foamed polystyrene packaging materials. Extruded foams of unmodified starch replacing 1% to 20% of the starch with kraft lignin were prepared. At 10% lignin, there are no deleterious effects on foam density, morphology, compressive strength, or resiliency as compared to a starch extruded foam, yet the foam retains its integrity after immersion for 24 hours in water. At 20% lignin there is a decrease in compressive strength and resiliency. Addition of cellulose fibers restore the mechanical properties but with an increase in density.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: September 3, 2019
    Assignee: The Research Foundation for The State University of New York
    Inventor: Eugene S. Stevens
  • EXTRUDED STARCH-LIGNIN FOAMS
    Publication number: 20160368186
    Abstract: Extruded starch foams are well known as biodegradable alternatives to foamed polystyrene packaging materials. Extruded foams of unmodified starch replacing 1% to 20% of the starch with kraft lignin were prepared. At 10% lignin, there are no deleterious effects on foam density, morphology, compressive strength, or resiliency as compared to a starch extruded foam, yet the foam retains its integrity after immersion for 24 hours in water. At 20% lignin there is a decrease in compressive strength and resiliency. Addition of cellulose fibers restore the mechanical properties but with an increase in density.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 22, 2016
    Inventor: Eugene S. Stevens