Inventor

Cheng-Hao Chang

Inventor
Miaoli, TW

Overview

19→
Patents
2015–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 19 as inventor

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

H01Lprimary
H01LSemiconductor devices19%
H10KOrganic electric solid-state devices19%
C09KMaterials for miscellaneous applications, not provided for elsewhere16%
C07DHeterocyclic compounds13%
C07CAcyclic or carbocyclic compounds8%
H05BElectric heating4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons1%
B01DSeparation1%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015–2016Patents assigned to LUMINESCENCE TECHNOLOGY CORP (4)· patent assignee history
2015Patents assigned to CHANG CHENG-HAO (2)· patent assignee history
2015–2020Based in Miaoli, TW· patent location history
2015–2017Based in Hsinchu, TW· patent location history
2015Based in New Taipei, TW· patent location history
2016Based in Hsinchu County, TW· patent location history
2017–2018Patents assigned to LUMINESCENCE TECH CORP (4)· patent assignee history
2017Based in Beijing, CN· patent location history
2018–2020Patents assigned to CHANG CHENG HAO (7)· patent assignee history
2018–2020Patents assigned to YEN FENG WEN (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHANG CHENG HAOself72018–2020
YEN FENG WEN72018–2020
LUMINESCENCE TECH CORP42017–2018
LUMINESCENCE TECHNOLOGY CORP42015–2016
CHANG CHENG-HAOself22015
Locations
LocationPatentsSpan
Miaoli, TW122015–2020
Hsinchu, TW42015–2017
Beijing, CN12017
Hsinchu County, TW12016
New Taipei, TW12015