Patents by Inventor Hyun Sam Song

Hyun Sam Song 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).

  • 2-chloro-3, 5-bis(trifluoromethyl)phenyl benzoyl urea derivative and process for preparing the same
    Patent number: 6022882
    Abstract: The present invention relates to a novel benzoyl urea derivative which exhibits potent growth-retarding activity against pests and which is represented by formula (I), ##STR1## in which A represents N or CH, and X.sup.1 and X.sup.2 independently of one another represent hydrogen, fluoro, chloro or bromo.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: February 8, 2000
    Assignee: Dongbu Hannong Chemical Co., Ltd.
    Inventors: Jung Ho Kim, Yong Woo Shin, Jung Nyoung Heo, Eui Deok Kim, Joon Seo Park, Hyun Sam Song