Inventor

Cheng-Hsiung Chang

Inventor
New Taipei, TW

Overview

16→
Patents
1976–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 16 as inventor

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

B41Mprimary
B41MPrinting, duplicating, marking, or copying processes19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
Y10TTechnical subjects covered by former us classification10%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments6%
G06FElectric digital data processing6%
G09GArrangements or circuits for control of indicating devices using static means to present variable information6%
H04NPictorial communication, e.g. television6%
A47KSanitary equipment4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C07DHeterocyclic compounds4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1982Patents assigned to CHAMPION INT CORP (9)· patent assignee history
1976–1978Based in Chicago, IL, US· patent location history
1978–1980Based in Naperville, IL, US· patent location history
1982Based in Fairfield, OH, US· patent location history
2015–2017Patents assigned to AWIND INC (2)· patent assignee history
2015Patents assigned to CHANG CHENG-HSIUNG (1)· patent assignee history
2015–2021Based in New Taipei, TW· patent location history
2018Patents assigned to BARCO LTD (2)· patent assignee history
2020Patents assigned to FORESEE SCIENTECH LTD (2)· patent assignee history
2020Based in Xiushui Township, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHAMPION INT CORP91976–1982
AWIND INC22015–2017
BARCO LTD22018
FORESEE SCIENTECH LTD22020
CHANG CHENG-HSIUNGself12015
Locations
LocationPatentsSpan
New Taipei, TW52015–2021
Naperville, Illinois, US51978–1980
Chicago, Illinois, US31976–1978
Xiushui Township, TW22020
Fairfield, OH, US11982