Assignee

SHAN HAIFENG

US2 patents

Top patents by PatentIndex Score

US9242418B2Jan 26, 2016

Ophthalmic lens containing a fresnel surface and method for manufacturing same

SHAN HAIFENG4 citations63

US8920585B2Dec 30, 2014

Asymmetric bladder compression for elimination of lamination defects on progressive addition lenses

SHAN HAIFENG0 citations48