CH

Chang-Hsien Ho

Overall (2002): #2,386 of 266,432Top 1%
9
Patents 2002

Issued Patents 2002

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
D464468 Safety helmet 2002-10-15
6446271 Auxiliary buffer envelope device for inner pad of safety helmet 2002-09-10
D456567 Safety helmet 2002-04-30
D455869 Safety helmet 2002-04-16
D453975 Safety helmet 2002-02-26
D453590 Safety helmet 2002-02-12
D452940 Safety helmet 2002-01-08
D452942 Safety helmet 2002-01-08
D452941 Safety helmet 2002-01-08