In Scotland, I can see that being a difficult case for McDonald's to win. But then in the U.S., they win a case against a guy trying to market "MacDimSum", as t

In Scotland, I can see that being a difficult case for McDonald's to win. But then in the U.S., they win a case against a guy trying to market "MacDimSum", as they claim consumers would be confused that its a McDonald's product. They won that case, so food products cannot have the prefix Mc or Mac. Trademark can sometimes grant vast powers to famous brands.