Assignee
SHAN HAIFENG
US·2 granted patents·4 citations·filing 2011–2012
Top patents by PatentIndex Score
2 records- 0172US9242418B2Ophthalmic lens containing a fresnel surface and method for manufacturing sameSHAN HAIFENG·Filed 2011·Granted Jan 26, 2016·4 cites·20 claims
- 0249US8920585B2Asymmetric bladder compression for elimination of lamination defects on progressive addition lensesSHAN HAIFENG·Filed 2012·Granted Dec 30, 2014·0 cites·20 claims
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