48 Utility Patents
#1 in Jinan
#1,697 in China
#40,640 in the World
Forward Citations = 24
Company Filing History:

Shaanxi Xitan Geological Equipment

4. 1 out of 1
Shandong Tianqin Mining Machinery Equipment Co. Ltd.
5. 1 out of 1
Shandong Tianqin Engineering Technology Co., Ltd.
where one patent can have more than one assignee
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