Patents by Inventor Joseph Twitchell

Joseph Twitchell 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).

  • Polyether Block Copolymers
    Publication number: 20080312382
    Abstract: A block copolymer comprising a first polyether block including a pendant alkoxyfluoroalkyl group, and a second polyether block that is substantially devoid of pendant alkoxyfluoroalkyl groups and includes at least two distinct units.
    Type: Application
    Filed: December 13, 2005
    Publication date: December 18, 2008
    Inventors: Charles M. Kausch, Yongsin Kim, Richard R. Thomas, David L. Hardman, JR., Joseph Twitchell