Nestle, Cadbury Turn to KitKat Shape After Color Purple Case

There’s nothing sweet about the U.K. trademark battles between Mondelez International Inc.’s Cadbury unit and Nestle SA.

After Nestle blocked Cadbury’s bid to trademark the color purple used for its chocolate wrappers, the U.K. confectioner has turned the tables on its Swiss rival, opposing a similar attempt by Nestle to protect the shape of its KitKat bar.