Patents by Inventor Bill Chiang

Bill Chiang 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).

  • Superabsorbents having superior permeability and conveying properties
    Patent number: 8017549
    Abstract: A superabsorbent having superior permeability and conveying properties comprises a permeability enhancing agent and a cohesion control agent and has a free swell gel bed permeability of at least 15 Darcies and a Hausner ratio in the range of 1.18 to 1.34.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: September 13, 2011
    Assignee: BASF SE
    Inventors: Norbert Herfert, Martin Wendker, Hermann Josef Feise, Hanno Rüdiger Wolf, Bill Chiang, Guy Thomas Woodrum
  • Superabsorbents Having Superior Permeability and Conveying Properties
    Publication number: 20100093949
    Abstract: A superabsorbent having superior permeability and conveying properties comprises a permeability enhancing agent and a cohesion control agent and has a free swell gel bed permeability of at least 15 Darcies and a Hausner ratio in the range of 1.18 to 1.34.
    Type: Application
    Filed: November 7, 2007
    Publication date: April 15, 2010
    Applicant: BASF SE
    Inventors: Norbert Herfert, Martin Wendker, Hermann Josef Feise, Hanno Rüdiger Wolf, Bill Chiang, Guy Thomas Woodrum