Patents by Inventor Yeo Hong Yoon

Yeo Hong Yoon 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).

  • Ursolic acid derivative and method for preparing same
    Patent number: 9120839
    Abstract: The present invention relates to a novel ursolic acid derivative as an ursolic acid prodrug form, and to a method for preparing same, wherein the novel ursolic acid derivative as an ursolic acid prodrug can have excellent pharmacokinetic characteristics such as stability and oral absorptivity and exhibit excellent pharmaceutical activities by being converted into an ursolic acid in vivo. The ursolic acid derivative can be in an ester form in which C28 carboxylic acid in the ursolic acid is combined with a prodrug of a certain pharmaceutical compound.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 1, 2015
    Assignee: NEXOLIGO CO., LTD.
    Inventor: Yeo-Hong Yoon
  • NOVEL URSOLIC ACID DERIVATIVE AND METHOD FOR PREPARING SAME
    Publication number: 20150218206
    Abstract: The present invention relates to a novel ursolic acid derivative as an ursolic acid prodrug form, and to a method for preparing same, wherein the novel ursolic acid derivative as an ursolic acid prodrug can have excellent pharmacokinetic characteristics such as stability and oral absorptivity and exhibit excellent pharmaceutical activities by being converted into an ursolic acid in vivo, and. The ursolic acid derivative can be in an ester form in which C28 carboxylic acid in the ursolic acid is combined with a prodrug of a certain pharmaceutical compound.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 6, 2015
    Inventor: Yeo-Hong Yoon
  • Oxazolidinone derivatives and a method for the preparation thereof and an antibacterial composition containing the same
    Patent number: 5929083
    Abstract: An antibacterially effective compound of formula I: ##STR1## or a salt or hydrate thereof in which R1, R2, R3, R4, R5, X are as defined herein. Further, a process for producing the compound of formula I and an antibacterial composition containing antibacterially effective amount of the compound of formula I are disclosed.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: July 27, 1999
    Assignee: Cheil Jedang Corporation
    Inventors: Yeo Hong Yoon, Hak Sung Kim, Kwang Ho Lee, Kwang Hyuk Lee, Jin Ah Kang, Youn Ha Lee