Patents by Inventor Wayne H. Dickinson

Wayne H. Dickinson 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).

  • Use of cerium salts to inhibit manganese deposition in water systems
    Patent number: 7252769
    Abstract: Methods to control manganese deposition in an aqueous system, which include introducing a cerium-containing composition, and optionally another deposit control agent, to the aqueous system, are described. Also described, are cerium-containing compositions that promote the manganese stabilization performance of polymeric dispersants and phosphonic acids commonly used in water treatment applications. Cerium-containing compositions that can inhibit the oxidative degradation of deposit control agents are also described.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: August 7, 2007
    Assignee: Buckman Laboratories International, Inc.
    Inventor: Wayne H. Dickinson
  • Biofouling monitor and methods to monitor or detect biofouling
    Patent number: 6311546
    Abstract: A biofouling monitor is described which has a column having an inlet and an outlet; a microorganism nutrient feed line located upstream of the inlet; and a first pressure sensor located upstream of the inlet for measuring flow pressure and a second pressure system located downstream of the outlet for measuring flow pressure. Also described is a biofouling monitor which further has a recirculation system and optionally inert packing material located in the column. A method to monitor or detect biofouling ahead of time in an aqueous system is further described.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: November 6, 2001
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Wayne H. Dickinson, Thomas E. McNeel, Richard A. Clark, E. Van Haute