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Chengzhong Chen

PC Positec Power Tools (Suzhou) Co.: 5 patents #36 of 187Top 20%
Overall (All Time): #1,018,792 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8235139 Power tool Hongfeng Zhong 2012-08-07
7900715 Variable speed tool and variable speed control method 2011-03-08
7882899 Power tool having control system for changing rotational speed of output shaft Gianni Borinato, Kelvin Wong, Shisong Zhang, Paolo Andriolo, Warren Brown +2 more 2011-02-08
7882900 Power tool with signal generator Gianni Borinato, Kelvin Wong, Shisong Zhang, Paolo Andriolo, Warren Brown +2 more 2011-02-08
7195547 Dual plate sander 2007-03-27