Inventor
MAATMAN GAIL B
US4 patents
Patents
4 patentsUS6546399B1Apr 8, 2003
Multimedia search system
ENCYCLOPAEDIA BRITANNICA INC122 citations96
US7082437B2Jul 25, 2006
Multimedia search system
ENCYCLOPAEDIA BRITANNICA INC16 citations91
US6978277B2Dec 20, 2005
Multimedia search system
ENCYCLOPAEDIA BRITANNICA INC22 citations91
US7664775B2Feb 16, 2010
Multimedia search system
ENCYCLOPAEDIA BRITANNICA INC14 citations90