25 Utility Patents
#2,292 in Seoul
#7,044 in South Korea
#122,407 in the World
Forward Citations = 27
Company Filing History:


Youlchon Chemical Co., Ltd.
4. 1 out of 1
Optix Co., Ltd.
5. 1 out of 1
Youl Chin Chemical Co., Ltd.
where one patent can have more than one assignee
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