Patents by Inventor Pil H. Lee

Pil H. 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).

  • Cycloanthelmintic inhibitors
    Patent number: 5776950
    Abstract: This invention comprises novel compounds that inhibit the growth of helminths. The compounds have the structure of Formula I, below. ##STR1## Where the R groups are defined according to the specification and claims.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: July 7, 1998
    Assignee: Pharmacia & Upjohn Company
    Inventors: Byung H. Lee, Pil H. Lee, William W. McWhorter, Jr., Fred E. Dutton
  • Melt processable wholly aromatic polyester
    Patent number: 4987208
    Abstract: The present invention relates to a melt processable wholly aromatic polyester which includes the recurring moieties (I), (II), (III), and (IV), wherein the recurring moiety (IV) is present in an amount of 5 to 35 mole % based on the total amount of the moieties and can be subjected to melt process at a temperature below 350.degree.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: January 22, 1991
    Assignees: Tong Yang Nylon Co., Ltd, Tong Yang Polyester Co., Ltd.
    Inventors: Tae W. An, Jong K. Jung, Yung C. Yoo, Pil H. Lee, Tae W. Son