Patents by Inventor Guoying Chen

Guoying Chen 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).

  • Method of screening compositions for electrocatalytic activity in a gas diffusion electrode
    Publication number: 20020014584
    Abstract: A novel process and apparatus to combinatorially screen a large number of discrete compositions for electrocatalytic activity have been developed. The apparatus contains a cell body adjacent to a fluid permeable catalyst array support supporting multiple solids. A catalyst mask having holes that are in alignment with the multiple locations for supporting solids is placed over the catalyst array support, masking the solids. A cell cover is positioned adjacent to the catalyst array support, with the cell cover having a passage for monitoring the solids through the mask. A detector may be in alignment with the passage of the cell cover.
    Type: Application
    Filed: July 5, 2001
    Publication date: February 7, 2002
    Inventors: Thomas E. Mallouk, Eugene S. Smotkin, Benny C. Chan, Guoying Chen, Renxuan Liu
  • Electrocatalyst compositions
    Patent number: 6284402
    Abstract: Compositions for use as catalysts in electrochemical reactions are described. The compositions are alloys prepared from two or more elemental metals selected from platinum, molybdenum, osmium, ruthenium, rhodium, and iridium. Also described are electrode compositions including such alloys and electrochemical reaction devices including such catalysts.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: September 4, 2001
    Assignees: The Penn State Research Foundation, The Illinois Institute of Technology
    Inventors: Thomas E. Mallouk, Benny C. Chan, Erik Reddington, Anthony Sapienza, Guoying Chen, Eugene Smotkin, Bogdan Gurau, Rameshkrishnan Viswanathan, Renxuan Liu
  • Optical fiber waist refractometer
    Patent number: 5600433
    Abstract: The present invention relates to a refractive index detector for a dynamic liquid sample having a fiber optic filament of a predetermined diameter with an unclad sensor region, wherein the sensor region comprises a longitudinally tapered zone wherein the diameter continuously decreases from the predetermined diameter to a minimum diameter.The invention finds use as a detector for high performance liquid chromatography and capillary zone electrophoresis.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: February 4, 1997
    Assignee: The University of Wyoming
    Inventors: Daniel A. Buttry, Thomas C. Vogelmann, Guoying Chen, Richard Goodwin
  • Method and means for a spatial and temporal probe for laser-generated plumes based on density gradients
    Patent number: 4921348
    Abstract: A method and means for a spatial and temporal probe for laser generated plumes based on density gradients includes generation of a plume of vaporized material from a surface by an energy source. The probe laser beam is positioned so that the plume passes through the probe laser beam. Movement of the probe laser beam caused by refraction from the density gradient of the plume is monitored. Spatial and temporal information, correlated to one another, is then derived.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: May 1, 1990
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Edward S. Yeung, Guoying Chen