Inventor

CHING-YUN CHANG

Inventor
TW

Overview

10→
Patents
2021–2026
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.

H10Dprimary
H10DInorganic electric semiconductor devices32%
H01LSemiconductor devices18%
H02HEmergency protective circuit arrangements18%
C23CCoating metallic material9%
H01JElectric discharge tubes or discharge lamps9%
B08BCleaning in general5%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h105%
LOC135%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to UNITED MICROELECTRONICS CORP (1)· patent assignee history
2021–2025Based in TW· patent location history
2022–2025Patents assigned to TAIWAN SEMICONDUCTOR MFG CO LTD (4)· patent assignee history
2022–2023Patents assigned to SEMICONDUCTOR MFG INT BEIJING CORP (2)· patent assignee history
2022–2023Patents assigned to SEMICONDUCTOR MFG INT SHANGHAI CORP (2)· patent assignee history
2022–2023Based in CN· patent location history
2026Patents assigned to LAM RES CORP (3)· patent assignee history
2026Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAIWAN SEMICONDUCTOR MFG CO LTD42022–2025
LAM RES CORP32026
SEMICONDUCTOR MFG INT BEIJING CORP22022–2023
SEMICONDUCTOR MFG INT SHANGHAI CORP22022–2023
UNITED MICROELECTRONICS CORP12021
Locations
LocationPatentsSpan
TW52021–2025
US32026
CN22022–2023