CH

Chih-Ching Hsien

Overall (All Time): #16,550 of 4,157,543Top 1%
94
Patents All Time

Issued Patents All Time

Showing 1–25 of 94 patents

Patent #TitleCo-InventorsDate
D592024 Ratchet wrench handle 2009-05-12
D566496 Ratchet wrench handle 2008-04-15
7240591 Adjustable spanner 2007-07-10
D539131 Sleeve 2007-03-27
7185564 Pipe wrench having a fixed positioning ring 2007-03-06
7178431 Extendable handles for hand tools 2007-02-20
7131358 Quick release device for releasing screw bit from socket 2006-11-07
7121171 Ratchet control structure of bidirectional ratchet spanner 2006-10-17
7117770 Dual function wrench 2006-10-10
7104168 Slide stop device of a hexagonal spanner 2006-09-12
7066057 Wrench with jaws having different tilt angles 2006-06-27
7062978 Hand tool with strain gauges 2006-06-20
7059222 Slide stop device of a hexagonal spanner 2006-06-13
D520846 Tool handle 2006-05-16
D520824 Spanner 2006-05-16
7044621 Lamp seat of a hand tool 2006-05-16
7044034 Slide stop device of a hexagonal spanner 2006-05-16
D520310 Wrench handle 2006-05-09
D520309 Torque wrench handle 2006-05-09
7040202 Slide stop device of a hexagonal spanner 2006-05-09
D519341 Wrench handle 2006-04-25
D518342 Two close ended spanner 2006-04-04
D517879 Two open ended spanner 2006-03-28
7017455 Handle of a hand tool 2006-03-28
7013763 Wrench with display device 2006-03-21