Rubik's Cube shape is not a trademark, EU rules, The Independent

The 3D brainteaser invented in 1974 by Hungarian Erno Rubik is popular among young and old, with more than 350m cubes sold worldwide

Rubik's Cube - Wikipedia

Rubik's Cube puzzled after losing EU trademark battle, Toys

The puzzle is solved: Rubik's Cube 3D trademark is invalid

AFTERLIFE CUBE ~ An otherworldly challenge by MVented — Kickstarter

Rubik's Cube and its EU Trademark Protection

Rubik's Cube Owners Lose as EU Trademark Fight Takes New Twist

Rubik's Cube - Wikipedia

Rubik's Cube puzzled after losing EU trademark battle, Toys

Rubik's Brand Ltd v Simba Toys GmbH & Co. KG, 2017 Trademark

Rubik's Cube loses EU trademark fight over its shape

Rubik's Cube and its EU Trademark Protection

How to solve a rubik's cube? Algorithms explained

Rubik's Cube puzzled after losing EU trademark battle, Toys

What Rubik's Cube do pros use? Is it different than the one you