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Hsueh-Mi Chang
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Taichung, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Key sheath
Patent number
7,360,383
Issue date
Apr 22, 2008
Hsueh-Liang Chang
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Locking device for a storage cabinet
Patent number
7,131,301
Issue date
Nov 7, 2006
Hsueh-Liang Chang
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Pipe disassembling tool
Patent number
7,120,980
Issue date
Oct 17, 2006
Hsueh Chin Chang
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Adjustable wrench for vehicle service
Patent number
7,017,454
Issue date
Mar 28, 2006
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Structure of a piercing drain device used on a sealed chamber
Patent number
6,712,240
Issue date
Mar 30, 2004
Hsueh Chin Chang
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Differential gear designed for use in light-duty motor vehicles
Patent number
6,616,565
Issue date
Sep 9, 2003
Yao-Yu Chen
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Hand pump
Patent number
D478369
Issue date
Aug 12, 2003
Hsueh Chin Chang
D23 - Environmental heating and cooling
Information
Patent Grant
Two-way manually operated pump structure
Patent number
6,558,130
Issue date
May 6, 2003
Hsueh Chin Chang
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Structure pliers for inner and outer diameter C-shaped snap
Patent number
6,470,774
Issue date
Oct 29, 2002
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Sand cloth packaging structure for vacuum-type rotary sanders
Patent number
6,050,887
Issue date
Apr 18, 2000
Hsueh Chin Chang
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
Information
Patent Application
Lock for a locker
Publication number
20080141738
Publication date
Jun 19, 2008
Hsueh-Liang Chang
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
Locking device for a storage cabinet
Publication number
20080141737
Publication date
Jun 19, 2008
Hsueh-Liang Chang
G07 - CHECKING-DEVICES
Information
Patent Application
Grease gun
Publication number
20070137941
Publication date
Jun 21, 2007
Hsueh Chin Chang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
PIPE DISASSEMBLING TOOL
Publication number
20060218765
Publication date
Oct 5, 2006
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
Hand tool for detaching rim from a vehicle
Publication number
20060016298
Publication date
Jan 26, 2006
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
Adjustable wrench for vehicle service
Publication number
20050223855
Publication date
Oct 13, 2005
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
Structure automobile engine crankcase oil drain tap plug
Publication number
20050098384
Publication date
May 12, 2005
Hsueh Chin Chang
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Structure of spanner handle
Publication number
20040139828
Publication date
Jul 22, 2004
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
Structure pliers for inner and outer diameter C-shaped snap
Publication number
20020053262
Publication date
May 9, 2002
Hsueh Chin Chang
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Wrench
Publication number
20020043135
Publication date
Apr 18, 2002
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
Oil filter wrench
Publication number
20020017171
Publication date
Feb 14, 2002
Hsueh Chin Chang
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS