YF

Yiyan Feng

TB Trade Box: 4 patents #8 of 16Top 50%
Overall (All Time): #1,210,314 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D743624 Hair curler David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Rentong Wang +4 more 2015-11-17
D735410 Automatic hair styling device David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Zhiwu Yu +4 more 2015-07-28
D732738 Automatic hair styling device David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Zhiwu Yu +4 more 2015-06-23
D724784 Automatic hair styling device David Richmond, Howard Richmond, Michael A. Ragosta, Zhiyong Yu, Zhiwu Yu +4 more 2015-03-17