Guest Post on New Inter Partes Reexamination Standard

Patent Law Blog (Patently-O):
Guest Post by Jon E. Wright and Joseph E. Mutschelknaus of Sterne Kessler Goldstein & Fox, PLLC1
On September 16, 2011, the America Invents Act (“AIA”) changed the threshold standard for initiating inter partes reexamination. The new standard requires a requester to demonstrate that:
[T]he information presented in the request shows that there is a reasonable likelihood that the requester would prevail with respect to at least 1 of the claims challenged in the request.
America Invents Act – Sec. 6(c)(3)(A)(i)-(ii). We refer to the new standard as the “RLP” standard. The RLP standard is significant because it matches the future standard for initiating inter partes review under the AIA.
This post addresses the new RLP standard. First, we review case law surrounding the “reasonable likelihood” standard as it exists in other contexts such as preliminary injunctions. Next, based on our analysis of every single post-AIA inter partes reexamination the PTO has acted upon, we analyze how the Office has been applying the new RLP standard in reexamination orders. Finally, we consider how inter partes reexamination requests (and future petitions for inter partes review) should be structured for the best chance at meeting the RLP threshold.
The “Reasonable Likelihood” Standard
Patent practitioners are familiar with the “reasonable likelihood” standard in the context of preliminary injunctions. For a court to grant a preliminary injunction, a patentee must demonstrate four factors, one of which is a “reasonable likelihood of success on the merits.” Ranbaxy Pharm., Inc. v. Apotex, Inc., 350 F.3d 1235,1239 (Fed. Cir. 2003). This standard may be instructive in learning how the Office will deal with the new RLP standard for current inter partes reexamination requests and inter partes… review petitions later this year.
According to the Federal Circuit, the reasonable likelihood of success