Patents by Inventor Hyo Y. Kim

Hyo Y. 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).

  • Thermoplastic biodegradable resins and a process of preparation thereof
    Patent number: 5470941
    Abstract: A thermoplastic biodegradable resin having a number average molecular weight of 25,000-45,000, which is prepared by polycondensing one or a plurality of dicarboxylic acids represented by formula (I) with one or a plurality of diols represented by formula (II):ROOC--(--CH.sub.2 --).sub.n --COOR (I)HO--(--CH.sub.2 --).sub.m --OH (II)wherein R and R' are both hydrogen or are both methyl, n is 2 to 8 and m is 2 to 6.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: November 28, 1995
    Assignee: Sunkyong Industries
    Inventors: Hyo Y. Kim, Ki H. Hwang, Hoon Chae, Soo I. Sho, Jung N. Jun