Original, Mini and Memory MISTIs are covered by U.S. Patent Nos. 9,849,705; 9,731,531; 9,597,909; 9,925,812; 9,931,875; 10,759,204 and D847260.
Other U.S. and/or foreign patents may be pending.
Creative Corners are covered by U.S. Patent No. 9,776,443. Memory MISTI is also covered by U.S. Patent No. D87227.