In Zetec, Inc. v. Westinghouse Electric Co. LLC, IPR2014-00384, Paper 10 (July 23, 2014), the Board declined to institute an inter partes review of a petition presenting 127 grounds of unpatentability.  The Board advised:

“Although parties are given wide latitude in how they present their cases, the Board’s experience is that the presentation of an overwhelming number of issues tends to detract from the argument being presented . . . . Thus, parties should . . . focus on concise, well-organized, easy-to-follow arguments supported by readily identifiable evidence of record.” Office Patent Trial Practice Guide, 77 Fed. Reg. 48,756, 48,763 (Aug. 14, 2012).

The Board found that the petition did not comply with the Board’s rules that a petition must include “[a] full statement of the reasons for the relief requested,” placed a significant and unfair burden on the Patent Owner to respond to underdeveloped arguments for numerous asserted grounds;and placed a significant burden on the Board to evaluate fully the numerous grounds and underdeveloped assertions in the Petition to determine whether Petitioner has shown that it would be likely to prevail.