American Express Patent Deemed Indefinite Under Nautilus

By Vin Gurrieri ( April 6, 2015, 9:23 PM EDT) -- An Illinois federal judge has determined that numerous disputed claims of a data analytics patent held by an American Express Co. subsidiary and asserted against a joint venture partially owned by The Kroger Co. were indefinite under the framework set by the U. S. Supreme Court's recent Nautilus ruling. . . .

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