Patents by Inventor Chwang-Siek Pak

Chwang-Siek Pak 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).

  • Patent number: 8106071
    Abstract: The present invention relates to a method for treating or reducing the development of a hyperproliferative disorder, which comprises administering to a subject a composition, which comprises as an active ingredient the compound represented by the Formula 1: wherein R1, R2, R3, R4, R5, R6 and R7 independently represent hydrogen, halo, hydroxyl, cyano, amino, nitro, nitroso, carboxyl, C1-C12 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl, C5-C7 cycloalkenyl, C1-C6 alkylamino, C1-C6 alkoxy, aryl, heteroaryl, arylalkyl, arylalkenyl or alkylaryl; X and Y independently represent hydrogen, oxygen, or sulfur, bound to a carbon atom via a single or double bond; Z represents hydrogen, halo, hydroxyl, cyano, amino, nitro, nitroso, carboxyl, C1-C12 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl, C5-C7 cycloalkenyl, C1-C6 alkylamino, C1-C6 alkoxy, aryl, heteroaryl, arylalkyl, arylalkenyl, alkylaryl or —NH—R8; R8 represents hydrogen, halo, hydroxyl, cyano, amino, nitro, nitroso, carboxyl, C1-C12 alkyl, C2-C6 alkenyl, C3-C8 cy
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: January 31, 2012
    Assignee: Biobud Co., Ltd.
    Inventors: Kwang Hoe Chung, Chwang Siek Pak, Sung Yu Hong, Soo Jung Kang, Young Doug Sohn, Jae Hoon Hwang, Eun Bok Choi, Gyu Hwan Yon, Hyeon Kyu Lee, Heui Cheol Yang
  • Publication number: 20100120849
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hyperproliferative vascular disorders, and a pharmaceutical anticancer composition comprising the compound represented by the Formula 1. The present compounds exhibit IC50 values of less than 0.16 ?M for vascular smooth muscle cells and cancer cells to effectively prevent proliferation of vascular smooth muscle cells and cancer cells, thereby ensuring prevention or treatment of hyperproliferative vascular disorders such as arteriosclerosis and restenosis, and cancers.
    Type: Application
    Filed: May 23, 2007
    Publication date: May 13, 2010
    Applicant: Biobud Co., Ltd
    Inventors: Kwang Hoe Chung, Chwang Siek Pak, Sung Yu Hong, Soo Jung Kang, Young Doug Sohn, Jae Hoon Hwang, Eun Bok Choi, Gyu Hwan Yon, Hyeon Kyu Lee, Heui Cheol Yang
  • Patent number: 6552080
    Abstract: A fungicidal compound of formula (I) having a fluorovinye- or fluoropropenyl-oxyphenyloxime moiety and stereoisomers thereof are useful for protecting crops from fungal diseases: wherein, X is CH or N; Y is O or NH; R1 is hydrogen, C1-4 alkyl, or halogen-substituted C1-4 alkyl, R2 is a phenyl group optionally carrying one or more substituents selected from the group consisting of C1-4 alkyl, C1-4 alkoxy, methylenedioxy and halogen; or a naphthyl group; and R3 is hydrogen or CF3.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: April 22, 2003
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Bum Tae Kim, No Kyun Park, Gyung Ja Choi, Jin Cheol Kim, Chwang Siek Pak
  • Patent number: 6444850
    Abstract: A fungicidal compound of formula (I) having a fluorovinyloxyphenyl moiety and stereoisomers thereof are useful for protecting crops from fungal diseases: wherein: X is CH or N; Y is O or S; Z is O or NH; R1 is hydrogen or CF3; and R2 is hydrogen, a C1-10 alkyl, naphthyl, thiophenyl or a phenyl group optionally carrying one or more substituents selected from the group consisting of C1-6 alkyl, halogen-substituted C1-6 alkyl, C1-6 alkoxy, phenoxy, halogen, and methylenedioxy radicals.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Chwang-Siek Pak, Bum-Tae Kim, No-Kyun Park, Gyung-Ja Choi, Heung-Tae Kim
  • Patent number: 6376497
    Abstract: An antifungal compound of formula (I) or a pharmaceutically acceptable salt thereof: wherein: X is CH or N; Y is O, R1 and R2 are each independently F or Cl; R3 is a thiophenyl, naphthyl, or phenyl group, the phenyl group being optionally substituted with one or more substituents selected from the group consisting of C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, methylenedioxy and halogen; and R4 is H or trifluoromethyl.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: April 23, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Bum-Tae Kim, Sun-Young Han, Chwang-Siek Pak
  • Patent number: 5707931
    Abstract: The present invention relates to novel 4-amino-2-quinolinone derivatives of the formula (I) useful in agriculture, especially as fungicides, insecticides and herbicides ##STR1## wherein, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, halogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.1 -C.sub.3 haloalkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.1 -C.sub.3 haloalkyithio, NO.sub.2, CN, C.sub.1 -C.sub.4 alkoxy carbonyl, phenyl, phenoxy, benzoyl, benzenesulfonyl, benzyl or morpholine; R.sub.5 is hydrogen, C.sub.1 -C.sub.6 alkyl, cyclopropyl, phenyl, halophenyl, benzyl or phenylthiomethyl; R.sub.6 is hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.3 -C.sub.6 alkenyl or C.sub.3 -C.sub.6 alkynyl; and R.sub.7 is ##STR2## wherein, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15, R.sub.16, R.sub.17, R.sub.18, R.sub.19, R.sub.20, X, Y, m, n, p and q are defined within the description.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: January 13, 1998
    Assignee: Korea Research Intsituted of Chemical Technology
    Inventors: Chwang Siek Pak, Eun Bok Choi, Gyu Hwan Yon, Heui Cheol Yang, Hyeon Kyu Lee, Ge Hyeong Lee, Jin Pyo Lee, Gyung Ja Choi