QZ

Qian Yu Zhang

BI Bissell: 2 patents #102 of 205Top 50%
📍 Dongguan, CN: #838 of 2,387 inventorsTop 40%
Overall (All Time): #1,770,476 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12035874 Edge cleaning brushes for floor cleaner James T. Hotary, Chris J. Harmelink, John Joseph Bleau, Yongsheng Liang, Christopher L. Hogg 2024-07-16
11284759 Edge cleaning brushes for floor cleaner James T. Hotary, Chris J. Harmelink, John Joseph Bleau, Yongsheng Liang, Christopher L. Hogg 2022-03-29