Patents by Inventor Wayne Po-Wen Liu

Wayne Po-Wen Liu 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: 9586661
    Abstract: A device comprising a first plate disposed on top of a second plate where the first and second plates are parallel and separated by a fixed distance with a spacer, and wherein the spacer fits around the perimeter of the first and second plates creating a void space, and wherein the second plate has a plurality of pin-sized holes, and wherein a pump sits in the void space and is operably coupled to the plates, wherein the plates are operably coupled to the bottom, exterior hull of an Unmanned Underwater Vehicle (UUV), and wherein the pump is configured to pump liquid into the void space between the parallel plates.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: March 7, 2017
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Daniel Joseph Braun, Wayne Po-wen Liu, Peter Thomas Sullivan
  • Patent number: 9484589
    Abstract: A microbial fuel cell comprising: an anode; an anode chamber configured to house the anode and an oxygen-reduced, nutrient-rich solution from a sediment bottom of a natural water body, wherein the anode chamber shields the anode from surrounding oxygen-rich water; a cathode disposed outside the anode chamber in the oxygen-rich water and electrically coupled in series to the anode via an electrical load; and an agitator configured to periodically agitate the sediment bottom to increase the quantity of nutrients in the nutrient-rich solution.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: November 1, 2016
    Assignee: The United States of America as represented by Secretary of the Navy
    Inventors: Lewis Hsu, Wayne Po-Wen Liu, David Bartholomew Chadwick, Jeffrey Asher Kagan
  • Patent number: 9166242
    Abstract: An energy harvester comprising: a microbial fuel cell comprising an anode; and a pump comprising a flexible diaphragm that is configured to be flexed by an ambient, renewable energy source such that with each flexing of the diaphragm nutrient-rich media is pumped past the anode.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 20, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Wayne Po-Wen Liu, David Bartholomew Chadwick, Jeffrey Asher Kagan
  • Publication number: 20150249257
    Abstract: An energy harvester comprising: a microbial fuel cell comprising an anode; and a pump comprising a flexible diaphragm that is configured to be flexed by an ambient, renewable energy source such that with each flexing of the diaphragm nutrient-rich media is pumped past the anode.
    Type: Application
    Filed: August 13, 2013
    Publication date: September 3, 2015
    Inventors: Wayne Po-Wen Liu, David Bartholomew Chadwick, Jeffrey Asher Kagan
  • Patent number: 8481125
    Abstract: Molecular adsorption to the microfluidic device surfaces can be passively and actively mitigated by mixing certain hydrophilic polymers (organic polymers with repeating hydrophilic groups—the preferred polymers being amphipathic surfactants—with the sample liquid during or prior to relevant microfluidic operations. Nonionic surfactants such as polyoxyethylene sorbitan monooleate and polyoxyethylene octyl phenyl ether are especially effective. High molecular weight polyethylene polymers are also effective. The hydrophilic polymers appear to prevent binding of the fouling molecules to the microfluidic by occupying the surface sites in place of the fouling molecules or by interacting with the fouling molecules to prevent binding of the fouling molecules the surface. When surface adsorption is thus mitigated, microfluidic devices can readily handle samples containing biomolecules to enable active sample concentration, filtering, washing, transport, mixing and other sample handling operations.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: July 9, 2013
    Assignee: Advanced Liquid Logic Inc.
    Inventors: Uichong B. Yi, Peter-Patrick De Guzman, Wayne Po-Wen Liu
  • Patent number: 7919330
    Abstract: Methods of improving microfluidic assays are disclosed. Assays can be improved (better signal to noise ratio) by using sessile drop evaporation as an analyte concentration step (enhanced signal) and repeated passes of wash droplets as a means to reduce non-specific binding (noise reduction). In addition multiple massively parallel analyses improve the statistical precision of the analyses.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: April 5, 2011
    Assignee: Advanced Liquid Logic, Inc.
    Inventors: Peter Patrick de Guzman, Wayne Po-Wen Liu, Uichong Brandon Yi, Chang-Jin Kim
  • Publication number: 20090280251
    Abstract: Molecular adsorption to the microfluidic device surfaces can be passively and actively mitigated by mixing certain hydrophilic polymers (organic polymers with repeating hydrophilic groups—the preferred polymers being amphipathic surfactants—with the sample liquid during or prior to relevant microfluidic operations. Nonionic surfactants such as polyoxyethylene sorbitan monooleate and polyoxyethylene octyl phenyl ether are especially effective. High molecular weight polyethylene polymers are also effective. The hydrophilic polymers appear to prevent binding of the fouling molecules to the microfluidic by occupying the surface sites in place of the fouling molecules or by interacting with the fouling molecules to prevent binding of the fouling molecules the surface. When surface adsorption is thus mitigated, microfluidic devices can readily handle samples containing biomolecules to enable active sample concentration, filtering, washing, transport, mixing and other sample handling operations.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 12, 2009
    Applicant: Core-Microsolutions, Inc
    Inventors: Peter-Patrick De Guzman, Wayne Po-Wen Liu, Brandon Uichong Yi
  • Publication number: 20090042319
    Abstract: Methods of improving microfluidic assays are disclosed. Assays can be improved (better signal to noise ratio) by using sessile drop evaporation as an analyte concentration step (enhanced signal) and repeated passes of wash droplets as a means to reduce non-specific binding (noise reduction). In addition multiple massively parallel analyses improve the statistical precision of the analyses.
    Type: Application
    Filed: June 15, 2006
    Publication date: February 12, 2009
    Inventors: Peter Patrick De Guzman, Wayne Po-wen Liu, Brandon Uichong Yi, Chang-Jin Kim
  • Publication number: 20080215705
    Abstract: Remotely controlled platforms for experimentation provide for centralized placement of costly and space consuming experimentation equipment. Additionally, remotely controlled platforms take advantage of economies of scale to make the centralized experimentation platforms more available for students and researchers of institutions that cannot afford to have institutional ownership of the experimentation platforms.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 4, 2008
    Inventors: Wayne Po-Wen Liu, Peter Patrick DeGuzman, Uichong Brandon Yi