Inventor

HOPPY JOSEPH E

US3 patents

Patents

3 patents

US6485349B1Nov 26, 2002

Rolling toy

MATTEL INC38 citations90

US7203455B2Apr 10, 2007

Interactive multi-sensory reading system electronic teaching/learning device

MATTEL INC36 citations89

US6062939AMay 16, 2000

Toy power tool

MATTEL INC39 citations88