Christian Louboutin wins EU legal battle to trademark red-soled high heels
Seeing Red: Can a Brand Trademark a Signature Color? - Knowledge at Wharton
Louboutin defends red-sole trademark
Louboutin Loses Red Sole Litigation in Japan — Fashion, Law & Business
Can Christian Louboutin trademark its red soles? Court says no
Christian Louboutin scrambles to trademark his red-soled shoes
How Tiffany blue and Louboutin shoes are revealing trademark law's true colours - Legal Cheek
Designer Loses Bid to Protect Signature Shoes - The New York Times
Louboutin wins trademark battle against VanHaren
Court Rules Louboutin Can Enforce a Trademark on Its Red Outsoles - The New York Times
Why do Louboutin high heels have red bottoms? - Quora