HC

Hai-Hua Chen

AC Asia Optical Co.: 1 patents #175 of 366Top 50%
📍 Shangchuan, CN: #18 of 44 inventorsTop 45%
Overall (All Time): #3,402,641 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7304727 Laser distance-measuring device Pie-Yau Chien, Hua-Tang Liu, Hui-Qing Chen, Shou-Qing Yang, Liang Li +2 more 2007-12-04