there's the current well-documented suit against Yves Saint Laurent. There was also a 2007 case against lower priced shoemaker, and Steve Madden has definitely had
luxury shoes, though I can't find any evidence of a lawsuit.
Christian Louboutin Sale has been doing the red sole since 1992, but it wasn't trademarked until 2008, and he doesn't happen to agree with the aforementioned theory on
christian louboutin leopard being immune from this kind of lawsuit. "I have the biggest respect for the house of
red pumps . Having discussed the matter with them and not been able to reach an agreement, we have had to take this to court."