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Inventor

YIN CHANGHONG

US6 patents
⚠️ This page may combine multiple inventors who share the name “YIN CHANGHONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALCON INC

3 patents
US11584097B2Feb 21, 2023

Method for making opaque colored silicone hydrogel contact lenses

ALCON INC2 citations71
US11840035B2Dec 12, 2023

Pad transfer printing method for making colored contact lenses

ALCON INC0 citations61
US11602910B2Mar 14, 2023

Pad transfer printing method for making colored contact lenses

ALCON INC0 citations61

JOHNSON & JOHNSON VISION CARE

2 patents
US7875217B2Jan 25, 2011

Excess polymer ring removal during ophthalmic lens manufacture

JOHNSON & JOHNSON VISION CARE5 citations60
US7833443B2Nov 16, 2010

Molds for producing contact lenses

JOHNSON & JOHNSON VISION CARE4 citations60

YIN CHANGHONG

1 patent
US8292256B2Oct 23, 2012

Molds for producing contact lenses

YIN CHANGHONG5 citations65