Patents by Inventor Andrew W. Hannah

Andrew W. Hannah 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).

  • Heteroatomic regioregular poly(3-substitutedthiophenes) for photovoltaic cells
    Patent number: 7790979
    Abstract: Regioregular polythiophene polymers can be used in photovoltaic applications including copolymers and blends. The polymer can comprise heteroatoms in the side groups. Better efficiencies can be achieved.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: September 7, 2010
    Assignee: Plextronics, Inc.
    Inventors: Shawn P. Williams, Darin W. Laird, Troy D. Hammond, Andrew W. Hannah, Elena E. Sheina, Shijun Jia