YSL Successfully Challenges Louboutin's Trademarked Red Soles

Trademark protection of color: Louboutin's red-soled shoe is a clever logo

The Worldwide Trademark Battle over the Iconic Red Bottom Shoe - Chicago-Kent

Trademark issue: Red sole(ly) for Louboutin? LexDellmeier – Markenanwalt, Designanwalt München - Schutzrechte Marken, Designs, Patente, Gebrauchsmuster, Urheberrechte - Mark

Louboutin wins red sole fight with YSL; yet YSL “monochrome” line allowed

Christian Louboutin: The Evolution from Iconic Red Soles to Luxury Sneaker Innovation

Christian Louboutin's Red Sole – Is it Solely a Shape Mark?

Louboutin Wins Round in Red-Sole Shoe Appeal - WSJ

Christian Louboutin vs. YSL 'Red Soles' Court Case Takes A New Twist

A Federal Appeals Court Upholds Louboutin's Trademark for Red-Soled Shoes:, Michael C. Dorf, Verdict

Christian Louboutin Continues to Fight for His Red Soled High Heels Trademark (Poll) – The Hollywood Reporter

The Worldwide Trademark Battle over the Iconic Red Bottom Shoe - Chicago-Kent

The Fight for Red: Fashion Statement or Protected Trademark?

The Worldwide Trademark Battle over the Iconic Red Bottom Shoe - Chicago-Kent