Wal-Mart claims it owns smiley face.

Wal-Mart Vies for Right to Put On a Happy Face - Los Angeles Times: "The company says it has officially been using what it calls Mr. Smiley since 1996 and in more limited ways long before that. But the company didn't move to register the trademark until someone else threatened to do so first, Simley said."

And yeah you read that right. The Wal-Mart spokesman is named Simley.