Recently, we looked into the use of inter partes review, an administrative method for challenging the validity of a patent, as it has been used for challenging design patents. Our examination showed that the practice was still in its infancy. Moreover, only one patent had been successfully invalidated in IPR. Munchkin, Inc. v. Luv N' Care, Ltd., No. IPR2013-00072 (P.T.A.B. Apr. 21, 2014). We reported on that decision last April. Today, we can report on a decision on the merits by the Patent Trial and Appeal Board invalidating three more design patents. We are also taking a look at two additional pending petitions for IPR that may tell us more about the usefulness of this process in future design patent cases.