Domain registrar GoDaddy.com Inc. succeeded in invalidating six electronic messaging patents it allegedly infringed, when an Arizona federal court invoked the Alice precedent Tuesday and ruled the asserted claims cover abstract ideas that cannot be patented.

U.S. District Judge James A. Teilborg found that claims in patent holding company RPost Communications Ltd.'s patents covered abstract ideas concerning the collection of information about the delivery and opening of messages. This, he said, made each of the claims invalid under the U.S. Supreme Court’s landmark 2014 Alice decision, which held that abstract ideas implemented using a computer are not patent eligible.

GoDaddy was represented by Brian W. LaCorte, Kimberly A. Warshawsky, and Jonathon A. Talcott of Ballard Spahr.