Last Tuesday, for the first time ever, the Federal Circuit reversed the PTAB in an IPR decision by, among other things, ratcheting back the “broadest reasonable construction” standard for claim construction by declaring the PTAB’s construction “unreasonable.”  The Court said that, “[e]ven under the broadest reasonable interpretation, the board’s construction ‘cannot be divorced from the specification and the record evidence,’ and ‘must be consistent with the one that those skilled in the art would reach.’”  Microsoft v. Proxyconn, 2014-1542, -1543 (Fed. Cir. June 16, 2015) (“A construction that is ‘unreasonably broad’ and which does not ‘reasonably reflect the plain language and disclosure will not pass muster’”) (internal citations omitted).
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