Patents by Inventor Preveen Tummala

Preveen Tummala 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).

  • Filler reinforced thermoplastic compositions and process for manufacture
    Patent number: 7582241
    Abstract: A thermoplastic polymer composition reinforced with fibers such as cellulose or other fillers, particularly from natural sources, and a process for manufacturing the composition are disclosed. The polymer is extruded with a salt which reduces the melting point and pelletized. The pellets are then extruded again with the filler. The composition with the filler can then be melted at the reduced melting temperature to manufacture an article.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: September 1, 2009
    Assignee: Board of Trustees of Michigan State University
    Inventors: Amar K. Mohanty, Preveen Tummala, Manjusri Misra, Lawrence T. Drzal