3 Utility Patents
#11,490 in Beijing
#44,512 in China
Forward Citations = 0
Company Filing History:

University of Science and Technology Beijing
Beijing Playdo Outdoor Product Co., Ltd.
4. 1 out of 1
Hbzx High Tech Co., Ltd.
5. 1 out of 1
Xuanhua Iron and Steel Group Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today