Inventor

NIU XUXIAN

US3 patents

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

COOPERVISION INT HOLDING CO LP

1 patent

US8003024B2Aug 23, 2011

Polyolefin contact lens molds and uses thereof

COOPERVISION INT HOLDING CO LP5 citations58

YAO LI

1 patent

US8287782B2Oct 16, 2012

Interference fitting polar resin ophthalmic lens molding devices and related methods

YAO LI0 citations47

ALCON INC

1 patent

US11433630B2Sep 6, 2022

Method for making silicone hydrogel contact lenses

ALCON INC0 citations45