HC

Hongfei Cheng

📍 Beijing, CA: #31 of 284 inventorsTop 15%
Overall (2011): #27,334 of 364,097Top 8%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D646448 Dryer ball 2011-10-04
D646449 Pumpkin shaped dryer ball 2011-10-04
D643167 Laundry ball 2011-08-09
D638593 Laundry ball 2011-05-24