HY

Hsin-Hung Yang

Overall (All Time): #1,187,170 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10029352 Polygonal wrench tool — 2018-07-24
9676087 Pair of circlip pliers — 2017-06-13
9463558 Hand tool — 2016-10-11
8950298 Device for assembling and disassembling an oil filter tank — 2015-02-10