Inventor

Chih-Li Chang

Inventor
Tainan, TW

Overview

11→
Patents
1990–2013
Patent span
Physics
Primary field (CPC G)

Patents· 11 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein50%
A01DHarvesting13%
G02BOptical elements, systems or apparatus13%
G05DSystems for controlling or regulating non-electric variables13%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1992Patents assigned to IND TECH RES INST (2)· patent assignee history
1990Based in Hsin Chu Hsien, TW· patent location history
1992Based in Hsinchu, TW· patent location history
2007–2013Patents assigned to HANNSTAR DISPLAY CORP (9)· patent assignee history
2007–2013Based in Tainan, TW· patent location history
2008–2009Based in Taoyuan County, TW· patent location history
2012–2013Patents assigned to CHANG CHIH-LI (2)· patent assignee history
2012Based in Taipei, TW· patent location history
2013Patents assigned to CHANG KE-CHIN (1)· patent assignee history
2013Patents assigned to CHEN PO-CHUN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HANNSTAR DISPLAY CORP92007–2013
CHANG CHIH-LIself22012–2013
IND TECH RES INST21990–1992
CHANG KE-CHIN12013
CHEN PO-CHUN12013
Locations
LocationPatentsSpan
Tainan, TW62007–2013
Taoyuan County, TW22008–2009
Taipei, TW12012
Hsinchu, TW11992
Hsin Chu Hsien, TW11990