QH

Qingfen Hao

CI Chemitech Inc.,: 1 patents #4 of 19Top 25%
Overall (All Time): #3,706,961 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5853614 Long decay luminescent material Qinglong Hao, Qian Xu, Jun Li, Pengcheng Li, Baochan Liu +1 more 1998-12-29