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Inventor

TSANG FREDERICK L T

HK6 patents
⚠️ This page may combine multiple inventors who share the name “TSANG FREDERICK L T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

VTECH IND INC

3 patents
US5362272ANov 8, 1994

Activity toy and walker device

VTECH IND INC34 citations90
USD350373SSep 6, 1994

Housing for an electronic instructional game apparatus

VTECH IND INC28 citations89
USD360224SJul 11, 1995

Housing for an electronic instructional game apparatus

VTECH IND INC1 citations48

CHAN SANNIE L S

1 patent
USD413149SAug 24, 1999

Electronic learning aid housing

CHAN SANNIE L S18 citations81

VIDEO TECH INDUSTRIES INC

1 patent
USD353566SDec 20, 1994

Walker

VIDEO TECH INDUSTRIES INC13 citations71

VTECH IND LLC

1 patent
USD407748SApr 6, 1999

Electronic educational game housing

VTECH IND LLC16 citations67