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Inventor

Chuck Chang

Inventor
Taichung, TW

Overview

15→
Patents
2000–2014
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 15 as inventor

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

A63Cprimary
A63CSkates15%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding15%
F01LCyclically operating valves for machines or engines12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
Y10TTechnical subjects covered by former us classification12%
B01DSeparation4%
F02DControlling combustion engines4%
F16CShafts4%
F16DCouplings for transmitting rotation4%
F16KValves4%
PatentTitleYear
8,677,956'Control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine'20148,573,167'Control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine'2013D0680397'Wrench detent having unsymetrical tooth shapes at left and right end'20137,344,143'Roller skate having a safety device'20087,219,907'Skateboard wheel set with suspension device'20077,146,881'Wrench having a locking device with a smaller driving angle'20067,117,772'Wrench having a safety device'20066,913,272'Skateboard having a three-dimensional independent suspension balance system'20056,761,093'Socket structure'20046,722,508'Removable cartridge assembly for filtering bi-directional axial flow and radial flow and method of making same'20046,656,053'Automatically restorable universal connector'20036,644,265'Electro-hydraulic manifold assembly and method of making same for controlling de-activation of combustion chamber valves in a multicylinder engine'20036,253,646'Roller-type ratchet device for wrench'2001D0426864'Base for in-line roller skate'20006,053,512'Suspension system for in-line roller skates'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2014Patents assigned to CHANG CHUCK (6)· patent assignee history
2000–2013Based in Taichung, TW· patent location history
2003–2004Patents assigned to EATON CORP (2)· patent assignee history
2003–2004Based in Troy, MI, US· patent location history
2006–2008Patents assigned to LOTUSKATE SPORTS IND CO LTD (2)· patent assignee history
2013–2014Patents assigned to CHEN XUEWEI (2)· patent assignee history
2013–2014Patents assigned to MEYER ROGER (2)· patent assignee history
2013–2014Based in Lomita, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHANG CHUCKself62000–2014
CHEN XUEWEI22013–2014
EATON CORP22003–2004
LOTUSKATE SPORTS IND CO LTD22006–2008
MEYER ROGER22013–2014
Locations
LocationPatentsSpan
Taichung, TW112000–2013
Lomita, California, US22013–2014
Troy, MI, US22003–2004