Pennie & Edmonds, one of the US’ most respected IP boutiques, has closed its doors with the bulk of the firm’s practice being shared among Jones Day, Morgan Lewis & Bockius, Fried Frank Harris Shriver & Jacobson and Fross Zelnick Lehrman & Zissu.

Twenty-eight of the firm’s 47 partners opted to move to Cleveland-based Jones Day on 1 January, leaving the firm to officially close on 31 December.