Patents by Inventor Dorian Liepmann

Dorian Liepmann 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).

  • Publication number: 20010055242
    Abstract: A micro-electromechanical system and method for continuous laminar fluid mixing. An embodiment of the invention described in the specification includes a mixing channel, a first delivery channel that is connected to the mixing channel, and a second delivery channel that is connected to the mixing channel. A first pump mechanism produces pulses in the first delivery channel. A second pump mechanism produces pulses in the second delivery channel. The first pulsed fluid stream and the second pulsed fluid stream merge in the mixing channel to form a mixed fluid. The pulses in the fluids operate to distort the interface between the fluids to facilitate diffusion between the fluids.
    Type: Application
    Filed: May 30, 2001
    Publication date: December 27, 2001
    Inventors: Ajay Deshmukh, Dorian Liepmann
  • Patent number: 6065864
    Abstract: A microelectromechanical system mixes a fluid using predominantly planar laminar flow. The microelectromechanical system includes a mixing chamber and a set of valves to establish the planar laminar flow in the mixing chamber. In one embodiment, bubble-controlled pumps are operated with bubble-controlled valves to establish the predominantly planar laminar flow in the mixing chamber. The bubble-controlled pumps and valves may be used to establish a pulsed double-dipole flow field in the mixing chamber.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: May 23, 2000
    Assignee: The Regents of the University of California
    Inventors: John Evans, Dorian Liepmann, Albert P. Pisano