Patents by Inventor Bong K. Lee

Bong K. Lee 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).

  • Diamond golf club head
    Patent number: 5620382
    Abstract: A golf club head comprising a ball striking face with an insert of polycrystalline diamond (PCD), polycrystalline cubic boron nitride (PCBN), cemented compact, or single diamond crystal is described. Such inserts, because of their hardness and strength, provide for greater distance and accuracy of golf shots as compared to softer materials. These inserts have a mirror-like finish that is resistant to scratches, chips, and deformation.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: April 15, 1997
    Assignee: Hyun Sam Cho
    Inventors: Hyun S. Cho, Bong K. Lee, Yong I. Kim, Nam K. Jin, Kyoung R. Han
  • Macrolide antibiotic complex
    Patent number: 4349665
    Abstract: The AR-5-3 Complex consisting of four macrolide antibiotics is elaborated by a mutant strain of Micromonospora polytrota. The antibiotics exhibit substantial activity against gram positive bacteria in vitro and in vivo.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: September 14, 1982
    Assignee: Schering Corporation
    Inventors: Bong K. Lee, Joseph A. Marquez, J. Allan Waitz
  • Microbiological methylation of aminoglycosyl-aminoglycosides
    Patent number: 4348516
    Abstract: The microorganisms Micromonospora inyoensis 1550F-1G and M. purpurea strain 1124 each microbiologically convert tobramycin, kanamycin A, kanamycin B and dibekacin to their respective 3"-N-methyl and 3"-N-methyl-4"-C-methyl derivatives. The derivatives exhibit significant activity against representative gram positive and gram negative bacteria and may also be converted to other derivatives which have significant antibacterial activity.
    Type: Grant
    Filed: June 12, 1980
    Date of Patent: September 7, 1982
    Assignee: Schering Corporation
    Inventors: Bong K. Lee, Gerald H. Wagman, Dinanath F. Rane, Joseph A. Marquez, Peter J. L. Daniels
  • Microbiological methylation of aminoglycosyl-aminoglycosides
    Patent number: 4234685
    Abstract: The microorganisms Micromonospora inyoensis 1550F-1G and M. purpurea strain 1124 each microbiologically convert tobramycin, kanamycin A, kanamycin B and dibekacin to their respective 3"-N-methyl and 3"-N-methyl-4"-C-methyl derivatives. The derivatives exhibit significant activity against representative gram positive and gram negative bacteria and may also be converted to other derivatives which have significant antibacterial activity.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: November 18, 1980
    Assignee: Schering Corporation
    Inventors: Bong K. Lee, Gerald H. Wagman, Dinanath F. Rane, Joseph A. Marquez, Peter J. L. Daniels