P

Inventor

ZHU ZHENYA

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

OPTIMA INC

3 patents
US5679756AOct 21, 1997

Optical thermoplastic thiourethane-urethane copolymers

OPTIMA INC121 citations96
US6008296ADec 28, 1999

Optical terpolymer of polyisocyanate, polythiol and polyene monomers

OPTIMA INC48 citations93
US6777494B1Aug 17, 2004

Optical terpolymer of polyisocyanate, polythiol and polyene monomers

OPTIMA INC13 citations81

UNIV ALASKA

1 patent
US6347551B1Feb 19, 2002

Acoustic tree and wooden member imaging apparatus

UNIV ALASKA42 citations87

CROMPTON CORP

1 patent
US6943202B2Sep 13, 2005

Radiation-curable polyurethane

CROMPTON CORP18 citations82

ASAHI LITE OPTICAL CO LTD

1 patent
US6309568B1Oct 30, 2001

Process method optical thermoplastic urethane resin lens and the lens

ASAHI LITE OPTICAL CO LTD3 citations60