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Inter partes review (IPR) and covered business method patent review (CBM) proceedings have been available for 9 weeks—since Sept. 16. During the first two months of these proceedings, 51 IPR petitions and 14 CBM petitions have been filed, with only six being found non-compliant or incomplete. But the pace of filing during the second month has slowed significantly since the proceedings were introduced, as shown in the graph below.