CC

Cheng-Chen Chang

CL Caster Lighting: 1 patents #2 of 3Top 70%
Overall (All Time): #2,262,244 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5779350 Hand tool case with detachably connected working light 1998-07-14
5595195 Cigarette with installed fire extinguisher Cheeror Yang 1997-01-21