Patents by Inventor Young Che Chung

Young Che Chung 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 for increasing the charring ratio of coal
    Patent number: 6203848
    Abstract: Disclosed is a method for increasing the charring ratio of coal. In manufacturing an ingot iron using the coal, magnesium oxide or limestone is used as an additive for charring the coal. The additive increases the charring ratio of the coal while giving no affection onto slag. An MgO suspension or limestone suspension is mixed with the coal and thus obtained mixture is dried to attach MgO or the limestone onto the surface of the coal. The charring effect is increased and the using amount of coke can be reduced.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: March 20, 2001
    Assignees: Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & Technology, Voest-Alpine Industrieanlagenbau GmbH
    Inventors: Min Young Cho, Myoung Kyun Shin, Young Che Chung, Dael Whei Lee