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Inventor

Tien Sung Chen

Inventor
Taichung, TW

Overview

4→
Patents
2004–2015
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

B25Bprimary
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding33%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1033%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis17%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%
PatentTitleYear
9,073,184'Controlling structure for a unidirectional ratchet wrench'20158,683,894'Positioning structure for a ratchet wrench'20146,881,670'Interconnect process and method for removing metal silicide'20056,833,081'Method of metal etching post cleaning'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2005Patents assigned to NANYA TECHNOLOGY CORP (2)· patent assignee history
2004–2005Based in Taoyuan, TW· patent location history
2014–2015Patents assigned to CHEN TIEN SUNG (2)· patent assignee history
2014–2015Patents assigned to CHEN YU WEN (2)· patent assignee history
2014–2015Based in Taichung, TW· patent location history
2015Patents assigned to YUNG FONG TOOLS CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEN TIEN SUNGself22014–2015
CHEN YU WEN22014–2015
NANYA TECHNOLOGY CORP22004–2005
YUNG FONG TOOLS CO LTD12015
Locations
LocationPatentsSpan
Taichung, TW22014–2015
Taoyuan, TW22004–2005