Inventor

LIU YU RICHARD

SG3 patents

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

ESSILOR INT

2 patents

US12554128B2Feb 17, 2026

Method of determining an attitude of an eyewear

ESSILOR INT0 citations45

US10379382B2Aug 13, 2019

Spectacle ophthalmic lens intended to be mounted on a spectacle frame

ESSILOR INT0 citations40

SONG LIXIN

1 patent

US9507171B2Nov 29, 2016

Method for tinting an optical film by thermal transfer printing

SONG LIXIN0 citations37