12 Utility Patents
#509 in Tainan
#8,600 in Taiwan
#327,802 in the World
Forward Citations = 14
Company Filing History:

Lee Chang Yung Chemical Industry Corporation
where one patent can have more than one assignee
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#509 in Tainan
#8,600 in Taiwan
#327,802 in the World
Company Filing History:

Get your Inventor Badge Today