DC

David Chao

CO Contour Optik: 4 patents #1 of 2Top 50%
📍 Saratoga, CA: #19 of 356 inventorsTop 6%
🗺 California: #892 of 26,763 inventorsTop 4%
Overall (2002): #10,102 of 266,432Top 4%
5
Patents 2002

Issued Patents 2002

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D467421 Container for storing eyeglasses and other items 2002-12-24
6474892 Multi-purpose containers having a foldable writing instrument 2002-11-05
6447116 Folding eyeglasses 2002-09-10
6382482 Assembly of magnetically attracted eyeglass case and case seat 2002-05-07
6367926 Eye-wear with magnets Richard Chao 2002-04-09