Patents by Inventor In-Gann Chen

In-Gann 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).

  • Process for producing nanoscale yttrium aluminum garnet (YAG) fluorescent powders
    Publication number: 20030111644
    Abstract: The present invention pertains to a process for synthesizing nano-scale yttrium aluminum garnet (YAG) fluorescent powders having formula (I):
    Type: Application
    Filed: October 31, 2002
    Publication date: June 19, 2003
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: In-Gann Chen, Yu-Lin Chen, Chii-Shyang Hwang
  • Method for producing shaped parts from high temperature oxide metal superconductive composites
    Patent number: 5145836
    Abstract: A technique which produces macroscopically homogeneous-shaped parts utilizes oxide-metal superconductor composites by providing a mixture of a superconductor oxide, a metal and either a oxygen or a fluorine donor.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: September 8, 1992
    Assignee: The University of Alabama
    Inventors: In-Gann Chen, Doru M. Stefanescu, Subhayu Sen, Joel Betts