Patents by Inventor Choong-Hyun Lee

Choong-Hyun 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).

  • ONE BODY-TYPE POWER TRANSFER SWITCH
    Publication number: 20100307895
    Abstract: Provided is a one body-type power transfer switch, in which a disconnecting portion is integrally formed to reduce errors arisen due to accumulated assembly tolerance and simplify manufacturing processes, thereby improving operators' convenience.
    Type: Application
    Filed: May 11, 2010
    Publication date: December 9, 2010
    Inventors: No-Chun Park, Choong-Hyun Lee
  • AUTO TRANSFER SWITCH INCLUDING COVER
    Publication number: 20100276266
    Abstract: A cover of an electrically-connected portion of an auto transfer switch, which is detachable and includes an arc guide portion.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Inventors: No-Chun Park, Choong-Hyun Lee
  • AUTO TRANSFER SWITCH INCLUDING TERMINAL COVER
    Publication number: 20100276265
    Abstract: Provided is a cover for protecting an upper end of a normal power terminal and an upper end of an emergency power terminal of an auto transfer switch. In this case, terminal covers are formed on the upper ends of the terminals to protect the terminals, thereby preventing operators from being hurt by electric shock.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Inventors: No-Chun Park, Choong-Hyun Lee
  • Pyrrolo[3,2-B]pyridine derivatives and processes for the preparation thereof
    Patent number: 7642269
    Abstract: The present invention provides novel pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Grant
    Filed: September 3, 2005
    Date of Patent: January 5, 2010
    Assignee: Yuhan Corporation
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Choong-Hyun Lee, Myung-Hun Cha, Heui-Il Kang, Sun-Young Jang
  • PYRROLO[3,2-B]PYRIDINE DERIVATIVES AND PROCESSES FOR THE PREPARATION THEREOF
    Publication number: 20070213358
    Abstract: The present invention provides novel pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Application
    Filed: September 3, 2005
    Publication date: September 13, 2007
    Applicant: YUHAN CORPORATION
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Choong-Hyun Lee, Myung-Hun Cha, Heui-Il Kang, Sun-Young Jang