Patents by Inventor Lidan Ma

Lidan Ma 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: D567852
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: April 29, 2008
    Assignee: Beifa Group Co., Ltd.
    Inventors: Zhiming Qiu, Lidan Ma
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    Patent number: D570414
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: June 3, 2008
    Assignee: Beifa Group Co., Ltd.
    Inventors: Zhiming Qiu, Lidan Ma
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    Patent number: D572306
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: July 1, 2008
    Assignee: Beifa Group Co., Ltd.
    Inventors: Zhiming Qiu, Lidan Ma
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    Patent number: D572307
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: July 1, 2008
    Assignee: Beifa Group Co., Ltd.
    Inventors: Zhiming Qiu, Lidan Ma
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    Patent number: D573639
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: July 22, 2008
    Assignee: Beifa Group Co., Ltd.
    Inventors: Zhiming Qiu, Lidan Ma
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    Patent number: D575340
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: August 19, 2008
    Assignee: Beifa Group Co., Ltd.
    Inventor: Lidan Ma
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    Patent number: D590877
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: April 21, 2009
    Assignee: Beifa Group Co., Ltd.
    Inventor: Lidan Ma