Patents by Inventor Heung T. Kim

Heung T. Kim 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: 5430153
    Abstract: The present invention relates to novel 2-quinolinone derivanves of the following general formula(I) useful in agriculture, especially as fungicides but also as insecticides and miticides. ##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, branched C.sub.c -C.sub.4 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 haloalkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.1 -C.sub.3 haloallcylthio, NO.sub.2, CN, alkoxy carbonyl, phenyl, substituted phenyl, phenoxy, substituted phenoxy, benzenesulfonyl, benzyi, substituted benzyl or morpholine;R.sub.5 is C.sub.1 -C.sub.6 alkyl, branched C.sub.3 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl, substituted phenyl, benzyl or phenylthio methyl: andX is S(O)nR.sub.6, OR.sub.9 or NAB:wherein.n is 0 or 1;R.sub.6, R.sub.9, A and B are defined within the description.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: July 4, 1995
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Chwang S. Pak, Eun B. Choi, Heui C. Yang, Gyu H. Yon, Ge H. Lee, Hyeon K. Lee, Sung K. Kim, Yeon S. Lee, Kwang W. Lee, Young R. Chung, Heung T. Kim
  • Patent number: 4340342
    Abstract: The processing of thermoplastic materials by working the thermoplastic materials into a hot flat sheet. The sheet material is first deformed or scored into a series of parallel strands that are interconnected by thin ribbons of the thermoplastic material thereby retaining integrity of the sheet material. The sheet material is then severed along the score line of the thin ribbons to form parallel strands which are cooled and guided to a fly cutter which cubes the strand material.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: July 20, 1982
    Assignee: The B. F. Goodrich Company
    Inventor: Heung T. Kim
  • Patent number: 4227870
    Abstract: An extruder for working rubber and other elastomeric compounds having an extruder screw with a feed section, metering section and a transition section. The transition section has a plurality of working sections in succession with each section having a pair of helical flights defining a pair of primary channels. One of such helical flights has a flight that leads off to define a secondary channel for leading off the portion of the compound subjected to a shearing action from the primary channels. The primary channels decrease in volume while their axial width remains the same. The secondary channel increases in axial width and depth to accommodate the worked rubber compound.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: October 14, 1980
    Assignee: The B. F. Goodrich Company
    Inventor: Heung T. Kim
  • Patent number: RE28901
    Abstract: An extruder apparatus for working polymeric material having a feed screw with dual flight defining a primary channel and a secondary channel. The primary channel progressively decreases in cross-sectional area while maintaining a constant width in cooperation with the secondary channel that increases in cross-sectional area to accommodate all the melt as it changes from a solid phase to a fluent phase. The secondary flight's height is such as to accommodate the melt as it is formed in the primary channel.
    Type: Grant
    Filed: April 23, 1975
    Date of Patent: July 13, 1976
    Assignee: The B. F. Goodrich Company
    Inventor: Heung T. Kim