Kei Fung Choi

SM Silverlit Toys Manufactory: 12 patents #3 of 7Top 45%

S( Silverlit Toys (U.S.A.): 6 patents #1 of 1Top 100%

DC Dongguan Silverlit Toys Co.: 4 patents #2 of 3Top 70%

SL Silverlit Limited: 4 patents #3 of 8Top 40%

Overall (All Time): #135,973 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #	Title	Co-Inventors	Date
5975977	Toy building construction kit	—	1999-11-02
5908345	Programmable toy	—	1999-06-01
5681201	Toy building system	—	1997-10-28