CC

Chi K. W. Chow

VI Vtech Industries: 5 patents #1 of 26Top 4%
VI Video Technology Industries: 1 patents #8 of 18Top 45%
📍 Sha Tin, CN: #245 of 2,424 inventorsTop 15%
Overall (All Time): #890,355 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D360224 Housing for an electronic instructional game apparatus Frederick L. T. Tsang, Chung P. C. Lau 1995-07-11
D358421 Electronic educational activity toy Frederick L. T. Tsang 1995-05-16
D353566 Walker Frederick L. T. Tsang 1994-12-20
5362272 Activity toy and walker device Frederick L. T. Tsang 1994-11-08
D350373 Housing for an electronic instructional game apparatus Frederick L. T. Tsang, Chung P. C. Lau 1994-09-06
D348483 Housing for an electronic instructional game apparatus Chung P. C. Lau 1994-07-05