Patents by Inventor Chan Oh Back

Chan Oh Back 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).

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    Patent number: D435937
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: January 2, 2001
    Assignee: Aproman, Inc.
    Inventors: Chan Oh Back, Ho Koo Joung, Young Taik Kim
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    Patent number: D412600
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 3, 1999
    Assignee: Aproman, Inc.
    Inventors: Jeong Bong Oh, Chan Oh Back