Didn't go well for Claude. Pizza Picasso is still open for business here in Sydney.
From article:
In September 2001, an intellectual property hearing in Canberra threw out Claude's objection. In his summary, the hearing officer, Jock McDonagh, included this memorable sentence: "I am not aware of any connection that Pablo Picasso might have had with restaurants or pizzas in his lifetime. While the mere mention of his name might immediately evoke images of his art and artistic genius, it does not likewise summon up visions of pizza."