Patents by Inventor James T. Hsu

James T. Hsu 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).

  • Heat transfer fluid compositions for low temperature applications
    Patent number: 6974552
    Abstract: A heat transfer fluid composition and process employing composite mixtures of terpenes and silicones useful for heat transfer processes in a temperature range down to ?200° F., where the fluid heat transfer composition retains its liquid phase over the entire temperature range.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: December 13, 2005
    Inventors: James T. Hsu, Satish Mohapatra, Daniel J. Loikits
  • Heat transfer fluid compositions for low temperature applications
    Patent number: 6086782
    Abstract: Heat transfer fluid compositions comprising (a) a terpene component, comprising at least one terpene; and (b) an alkylbenzene component, comprising at least one alkylbenzene; wherein the components are provided in an effective amount such that the 5resultant composition retains the liquid phase at temperatures in the range from about 0.degree. F. to below about -120.degree. F., preferably from about 0.degree. F. to about -175.degree. F.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: July 11, 2000
    Assignee: Advanced Fluid Technologies, Inc.
    Inventors: James T. Hsu, Kenneth F. Wieland, Satish Mohapatra, Daniel J. Loikits
  • Fluid heat transfer medium and heat transfer process
    Patent number: 5847246
    Abstract: A fluid heat transfer medium and process employing composite mixtures of monocyclic and bicyclic terpenes useful for heat transfer processes in a temperature range down to approximately -165.degree. F., where the fluid heat transfer medium maintains its liquid phase.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: December 8, 1998
    Assignee: Daniel J. Loikits
    Inventors: James T. Hsu, Daniel J. Loikits
  • Separation of mixtures by two-phase systems
    Patent number: 5078886
    Abstract: An organic two-phase system useful for the separation and purification of chemicals, biochemicals and optical isomers. The two-phase system can be formed with water soluble polymers as one phase, and chiral compound as the other phase together with a water-miscible organic solvent and/or water.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: January 7, 1992
    Assignee: Lehigh University
    Inventor: James T. Hsu
  • Separation of mixtures by aqueous two-phase systems
    Patent number: 4980065
    Abstract: An aqueous two-phase system useful for the separation and purification of biochemicals and optical isomers. The two-phase system can be formed with water soluble polymers as one phase, and chiral compound as the other phase.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: December 25, 1990
    Assignee: Lehigh University
    Inventor: James T. Hsu