Patents by Inventor Chung Ryu

Chung Ryu 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).

  • System for introducing particle-containing samples to an analytical instrument and methods of use
    Patent number: 11581177
    Abstract: Systems and methods for use in introducing samples to an analytical instrument. The systems and methods are adaptable to process either a liquid sample or a gaseous sample, including samples containing particle contaminants, for subsequent analysis using an analytical instrument.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: February 14, 2023
    Assignees: PerkinElmer Health Sciences Canada, Inc., Perkin Elmer Yuhan Hoesa
    Inventors: Chady Stephan, Chung Ryu
  • System for Introducing Particle-Containing Samples to an Analytical Instrument and Methods of Use
    Publication number: 20200035475
    Abstract: Systems and methods for use in introducing samples to an analytical instrument. The systems and methods are adaptable to process either a liquid sample or a gaseous sample, including samples containing particle contaminants, for subsequent analysis using an analytical instrument.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 30, 2020
    Inventors: Chady Stephan, Chung Ryu
  • Process for rolling soft metals
    Patent number: 5140837
    Abstract: The method of processing soft metal slabs to strip thickness on a processing line including providing a hot reversing mill having coiler furnaces on either side thereof along the processing line; heating the slab to a hot working temperature; passing the heated slab through the hot reversing mill at least one time to reduce the thickness thereof to form an intermediate product of a coilable thickness; coiling the intermediate product in one of the coiler furnaces; passing the intermediate product back and forth through said hot reversing mill and between the coiler furnaces to reduce the intermediate product to a product having a strip thickness; processing the product of strip thickness through a quench; and surface cleaning the quenched product. No subsequent hot rolling, hot milling, cold reduction or anneal takes place prior to forming the product of strip thickness.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: August 25, 1992
    Assignees: Tippins Incorporated, PMX Industries, Inc.
    Inventors: John E. Thomas, Chung Ryu, In H. Ryu, Gordon K. Young, Joong H. Shin