LexDanaLexDanabeta
Inventor

Bih-Chang Wang

Inventor
Hsinchu, TW

Overview

2→
Patents
2004–2013
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus50%
G08BSignalling systems, e.g. personal calling systems50%
PatentTitleYear
8,432,628'Optical film'20136,797,959'Sensitivity adjusting equipment of photoelectric smoke detector'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to PREC INSTR DEV CT NAT SCIENCE (1)· patent assignee history
2004Based in Yunlin County, TW· patent location history
2013Patents assigned to CHAO WEI-CHUNG (1)· patent assignee history
2013Patents assigned to CORETRONIC CORP (1)· patent assignee history
2013Patents assigned to LIU CHANG-CHENG (1)· patent assignee history
2013Patents assigned to SHIAU TZENG-KE (1)· patent assignee history
2013Based in Hsinchu, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHAO WEI-CHUNG12013
CORETRONIC CORP12013
LIU CHANG-CHENG12013
PREC INSTR DEV CT NAT SCIENCE12004
SHIAU TZENG-KE12013
Locations
LocationPatentsSpan
Hsinchu, TW12013
Yunlin County, TW12004