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Inventor

Hang-Chang Chang

Inventor
Hsinchu, TW

Overview

3→
Patents
2010–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds30%
C09KMaterials for miscellaneous applications, not provided for elsewhere30%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein20%
G02BOptical elements, systems or apparatus10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
8,545,947'Transparent substrate with optical compensation ability and liquid crystal display using the same'20138,404,319'Transparent substrate with low birefringence'20137,662,449'Liquid crystal display'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2013Patents assigned to IND TECH RES INST (3)· patent assignee history
2010–2013Based in Hsinchu, TW· patent location history
2013Patents assigned to CHANG HANG CHANG (1)· patent assignee history
2013Patents assigned to CHANG HANG-CHANG (1)· patent assignee history
2013Patents assigned to LEU CHYI MING (1)· patent assignee history
2013Patents assigned to LEU CHYI-MING (1)· patent assignee history
2013Based in Chiayi County, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IND TECH RES INST32010–2013
CHANG HANG CHANGself12013
CHANG HANG-CHANGself12013
LEU CHYI MING12013
LEU CHYI-MING12013
Locations
LocationPatentsSpan
Hsinchu, TW22010–2013
Chiayi County, TW12013