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ARTICLE · 01 DECEMBER 2015

What's In A Claim? IPR Can Be Denied For Indefiniteness

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In its recent decision Samsung Display Co. v. Funai Electric Co. (IPR 2015-01452), the PTAB declined to institute an IPR because the claims were indefinite.

United StatesIntellectual Property
Foley Hoag LLP
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Petitioners challenging patents with known indefiniteness issues must carefully consider their options when filing an IPR, which may address only a claim's patentability in view of the prior art under 35 U.S.C. § 102 or 103 — not under 35 U.S.C. § 112. The PTAB also requires an IPR petition to explain "[h]ow the challenged claim is to be construed." 37 C.F.R. § 42.104(b)(3). Thus for claim terms to be construed under §112 ¶6, an IPR petitioner must stake out a position to "identify the specific portions of the specification that describe the structure, material, or acts corresponding to each claimed function." Id. In the event the PTAB finds the challenged claim indefinite, no IPR will be instituted, and the petitioner will be left with no assessment of patentability but definitive claim constructions positions it may not want to be locked into at an early stage of litigation.

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