YC

Yung-Shou Chen

Overall (All Time): #146,249 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
D845736 Hammerhead 2019-04-16
D781123 Hammerhead 2017-03-14
D736051 Hammerhead 2015-08-11
8113091 Hammer with a socket hole blocking device 2012-02-14
D648611 Hammerhead 2011-11-15
D648202 Hammer grip 2011-11-08
D644498 Maul head 2011-09-06
D619442 Hammer grip 2010-07-13
D603675 Hammerhead 2009-11-10
D588894 Hammer 2009-03-24
7448299 Hand tool with vibration-damping sleeve 2008-11-11
D577978 Multipurpose prying tool 2008-10-07
D577273 Multipurpose prying tool 2008-09-23
D577274 Multipurpose prying tool 2008-09-23
D574690 Sledge hammer head 2008-08-12
D572106 Multipurpose crowbar 2008-07-01
7367545 Multipurpose lever type tool 2008-05-06
D556532 Hammerhead 2007-12-04
D550055 Hammerhead 2007-09-04
D549540 Hammerhead 2007-08-28
D549065 Hammerhead 2007-08-21
D536592 Hammerhead 2007-02-13
D534410 Tool handle cover 2007-01-02
D534409 Hammerhead 2007-01-02
D530583 Hammerhead 2006-10-24