Patents by Inventor Woo B. Choi

Woo B. Choi 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-aminothiazolecarboxamide derivatives, processes for preparing the same and use thereof for controlling phytopathogenic organisms
    Patent number: 5514643
    Abstract: The present invention relates to a novel 2-aminothiazolecarboxamide derivative represented by the following general formula (I): ##STR1## in which R.sup.1 -R.sup.5 are defined herein, which is a fungicidal agent useful for controlling phytopathogenic organisms. In addition, the present invention also relates to a process for preparing the novel 2-aminothiazolecarboxamide derivative of formula (I) and use of the compound of formula (I) as an agent for controlling phytopathogenic organisms.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: May 7, 1996
    Assignee: Lucky Ltd.
    Inventors: Yo S. Rew, Jinho Cho, Choon S. Ra, Sei-chang Ahn, Sung K. Kim, Yong-Hwan Lee, Bon Y. Jung, Woo B. Choi, Young H. Rhee, Man Y. Yoon, Sung W. Chun
  • 6-chloro-2-(4,6-dimethoxypyrimidin-2-yl)oxybenzoic acid imino ester derivatives, processes for their production and a method for their application as herbicides
    Patent number: 5494888
    Abstract: The present invention relates to 6-chloro-2-(4,6-dimethoxypyrimidin-2-yl)oxybenzoic acid iminoester derivative of the general formula I; process of their preparation and a method for their application as herbicides: ##STR1## wherein R and Q are as defined in the specification.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: February 27, 1996
    Assignee: Lucky Ltd.
    Inventors: Chang U. Hur, Jin H. Cho, Ho S. Lee, Sang K. Yoo, Su M. Hong, Hong W. Kim, Jae S. Rim, Yeong T. Bae, Sang H. Chae, Jeong S. Kim, Byoung B. Lee, Hun S. Oh, Woo B. Choi
  • Benzothiazole derivatives and methods of use
    Patent number: 5380735
    Abstract: The present invention relates to a novel benzothiazole derivative of the following general formula (I) or its (E) , (Z)isomer, and processes for preparation thereof, ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of one another represent hydrogen, halogen, straight and branched (C.sub.1 -C.sub.8)alkyl, (C.sub.1 -C.sub.8)halogenoalkyl or (C.sub.1 -C.sub.8)alkoxy,X represents N or CH,Y represents a group -OR.sup.4, SR.sup.5 or ##STR2## R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen, straight and branched (C.sub.1 -C.sub.16)alkyl, (C.sub.3 -C.sub.8)alkenyl, (C.sub.3 -C.sub.8)alkynyl, (C.sub.3 -C.sub.8)cycloalkyl, alkyl substituted with (C.sub.1 -C.sub.6)alkoxy or (C.sub.1 -C.sub.6)halogenoalkyl, or represent a substituted phenyl, phenylacyl or benzyl group wherein the possible substituent on the phenyl, phenylacyl or benzyl group includes halogen, straight and branched (C.sub.1 -C.sub.8)alkyl, (C.sub.1 -C.sub.8)alkoxy, (C.sub.3 -C.sub.8)alkenyl, (C.sub.3 -C.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: January 10, 1995
    Assignee: Lucky, Ltd.
    Inventors: Bon Y. Jung, Choon S. Ra, Yo S. Rew, Young H. Rhee, Ho S. Yeo, Man Y. Yoon, Woo B. Choi