Patents by Inventor Paul K. Chadwick

Paul K. Chadwick 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).

  • Refill pack for pipette tip racks
    Patent number: 5441702
    Abstract: A refill pack for storing and dispensing pipette tips into a tip rack, comprising a support plate with an array of holes containing disposable pipette tips arranged in an organized array and a carrier for hand positioning the support plate over the tip rack for release of the array of pipette tips into the tip rack.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: August 15, 1995
    Assignee: Rainin Instrument Co., Inc.
    Inventors: David J. Lemieux, Paul K. Chadwick, Christopher Kelly, James S. Petrek, Kenneth Rainin, Haakon T. Magnussen, Jr., William D. Homberg
  • Refill pack for pipette tip racks
    Patent number: 5392914
    Abstract: A refill pack of light weight low mass material containing an array of replacement pipette tips for a reusable tip rack. The refill pack comprises a support plate with an array of holes containing pipette tips arranged in an organized manner and including a skirt-like guide for centering and guiding the support plate onto the tip rack with distal end portions of the pipette tips aligned with and vertically entering corresponding holes in an organizing tray in the tip rack.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: February 28, 1995
    Assignee: Rainin Instrument Co., Inc.
    Inventors: David J. Lemieux, Paul K. Chadwick, Christopher Kelly, James S. Petrek, Kenneth Rainin, Haakon T. Magnussen, Jr., William D. Homberg