Wal-Mart seeks smiley face rights
Wal-Mart uses the smiley face on staff uniforms and promotional signs
Wal-Mart is embroiled in a legal dispute over the smiley face image which it wants to trademark in the US.
A Frenchman who claims to have invented the yellow smiley face back in 1968 is opposing the US retail giant's move.
http://news.bbc.co.uk/2/hi/business/4984138.stm