David Chao

CO Contour Optik: 3 patents #1 of 2Top 50%

📍 Saratoga, CA: #47 of 387 inventorsTop 15%

🗺 California: #2,168 of 28,370 inventorsTop 8%

Overall (2004): #30,655 of 270,089Top 15%

Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6814226	Multi-purpose containers	—	2004-11-09
6808284	Eyeglasses provided with light sources, screw drivers, and writing instruments	—	2004-10-26
6789664	Eyeglass cases having timepieces and eyeglass cases having mirrors	—	2004-09-14