Patents by Inventor David Soon-Hua Lee

David Soon-Hua Lee 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).

  • Droplet dispensation from a reservoir with reduction in uncontrolled electrostatic charge
    Patent number: 7481511
    Abstract: Devices and methods are provided for reducing the uncontrolled electrostatic charges that can alter the volume and/or trajectory of a droplet, which is typically ejected through the application of focused acoustic radiation. Also provided are reservoirs and substrates, e.g., well plates formed from a material that is at least partially nonmetallic or polymeric and either has an electrical resistivity of no more than about 1011 ohm-cm, has a surface electrical resistivity of no more than about 1012 ohm/sq, or both.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: January 27, 2009
    Assignee: Picoliter Inc.
    Inventors: Mitchell W. Mutz, David Soon-Hua Lee, George McLendon