Inventor

CHIA-HUA CHANG

Inventor
TW

Overview

10→
Patents
2022–2025
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

H01Lprimary
H01LSemiconductor devices17%
H10DInorganic electric semiconductor devices17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%
H01JElectric discharge tubes or discharge lamps8%
A41HAppliances or methods for making clothes, e.g. for dress-making or for tailoring, not otherwise provided for4%
A61BDiagnosis4%
G06FElectric digital data processing4%
H01QAntennas, i.e. radio aerials4%
H01RElectrically-conductive connections4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2024Patents assigned to TAIWAN SEMICONDUCTOR MFG CO LTD (2)· patent assignee history
2022Patents assigned to MOXA INC (1)· patent assignee history
2022–2025Based in TW· patent location history
2023Patents assigned to KWONG LUNG ENTPR CO LTD (1)· patent assignee history
2024–2025Patents assigned to UNITED MICROELECTRONICS CORP (4)· patent assignee history
2025Patents assigned to METAL IND RES & DEV CT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNITED MICROELECTRONICS CORP42024–2025
TAIWAN SEMICONDUCTOR MFG CO LTD22022–2024
KWONG LUNG ENTPR CO LTD12023
METAL IND RES & DEV CT12025
MOXA INC12022
Locations
LocationPatentsSpan
TW102022–2025