Patents by Inventor Andrew D. Sauter

Andrew D. Sauter 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).

  • Patent number: 6149815
    Abstract: Femtoliter to milliliter volumes of one or a plurality of different liquids are accurately dispensed electrokinetically without any direct electrical contact with such liquid(s). This is accomplished with apparatus which creates an electric field over dispensing receptacles to discharge such liquid(s) into receiver reservoirs or scientific apparatus. Two electrically-conductive plates are insulated from each other so that a field polarizes the liquid and forces movement without faradaic processes or joule heating. One of the plates is charged, whereas the other is grounded. Liquid to be dispensed is placed between the two plates and is dispensed on applying the charge to the charged plate.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: November 21, 2000
    Inventor: Andrew D. Sauter