HC

Hsueh Chin Chang

Overall (All Time): #583,390 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
D558548 Pipe disassembling tool 2008-01-01
7120980 Pipe disassembling tool 2006-10-17
7017454 Adjustable wrench for vehicle service 2006-03-28
D505603 Side mount can tap valve 2005-05-31
6712240 Structure of a piercing drain device used on a sealed chamber 2004-03-30
D478369 Hand pump 2003-08-12
6558130 Two-way manually operated pump structure 2003-05-06
6470774 Structure pliers for inner and outer diameter C-shaped snap 2002-10-29
6050887 Sand cloth packaging structure for vacuum-type rotary sanders 2000-04-18