Inventor

CHANG WEN-CHEN

TW30 patents

⚠️ This page may combine multiple inventors who share the name “CHANG WEN-CHEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHANG WEN-CHEN

(unassigned)

Retractable handle assembly

Wheel device

Wheel device

Rotatable drawbar device

Structure of hand truck

Retractable handle

Retractable handle assembly

Extensible handle device

Suitcase handle

Handcart

Adjustable handle device of a suitcase

Safety package of the strung up electrical lights

Suitcase carrier

Wheel support device

CHEN CHI-CHANG

Fuel cell stack

Fuel cell fluid flow field plate comprising an upward extending portion and a cover extending portion

Fuel cell fluid flow plate with shell passageway piece

Modularized fuel cell devices and fluid flow plate assemblies

Fuel cell module having non-planar component surface

IND TECH RES INST

Soft magnetism thin film inductor and magnetic multi-element alloy film

Movable monitoring equipment and remote monitoring and directing system

Method for forming fuel cell fluid flow field plate

Method for fabricating bi-polar plate of fuel cell

TAIWAN SEMICONDUCTOR MFG

Method and system for yield loss analysis by yield management system

Method and system for yield loss analysis by yield management system

CHANG WEN-CHEN

Air cell castor

Wheel holder of a trunk

SHIU HUAN-RUEI

Fluid flow plate with a supporting frame for a fuel cell

WANG WEN-LIN

Method for fabricating bi-polar plate of fuel cell and bi-polar plate of fuel cell

CHANG WEN CHEN

Visible spring-biased castor assembly