Chi Ka-wah — 1 Patent at Vtech Electronics

Chi Ka-wah has been granted 1 US patent while listed as an inventor at Vtech Electronics. All of these patents were granted in 2004. Chi Ka-wah ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Chi Ka-wah in Tsuen Wan, CN.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6792243	Electronic book with simulated three-dimensional illustrations	Frederick Lam-tak	2004-09-14

Chi Ka-wah — 1 Patent

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