Patents by Inventor Hyeong Guk YOO

Hyeong Guk YOO 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).

  • Apparatus for purifying organic compound and method of purifying organic compound
    Patent number: 9850259
    Abstract: An apparatus for purifying an organic compound and a method of purifying an organic compound, the apparatus including an inner tube that receives a purification target material therein; a heater that heats the purification target material received in the inner tube; an evacuator that evacuates the inner tube into a vacuum; and a driving device that drives the inner tube.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: December 26, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Sang June Choi, Hyeong Guk Yoo, Hee Jun Jeong, Myeong Soon Kang, Hae Sang Yoon
  • APPARATUS FOR PURIFYING ORGANIC COMPOUND AND METHOD OF PURIFYING ORGANIC COMPOUND
    Publication number: 20140336384
    Abstract: An apparatus for purifying an organic compound and a method of purifying an organic compound, the apparatus including an inner tube that receives a purification target material therein; a heater that heats the purification target material received in the inner tube; an evacuator that evacuates the inner tube into a vacuum; and a driving device that drives the inner tube.
    Type: Application
    Filed: April 23, 2014
    Publication date: November 13, 2014
    Inventors: Sang June CHOI, Hyeong Guk YOO, Hee Jun JEONG, Myeong Soon KANG, Hae Sang YOON