APA Precludes New Theories Absent Requisite Notice § 554(b)(3)
The Patent Trial & Appeal Board (PTAB) will often change its construction of a disputed claim term over the course of an AIA patent trial proceeding. What was less clear, however, was whether or not the Board had the authority to advance an entirely new claim construction of its own—of a term not in dispute—for the first time, at final decision. This practice, occurring with increasing frequency as of late, was addressed last Friday by the Federal Circuit.
It is difficult to imagine either party anticipating that already-interpreted terms were actually moving targets, and it is thus unreasonable to expect that they would have briefed or argued, in the alternative, hypothetical constructions not asserted by their opponent.
SAS focused its argument on the Board’s institution decision claim interpretation, a reasonable approach considering ComplementSoft agreed with this interpretation in its patent owner’s response and never suggested that the Board adopt the construction that eventually materialized in the final written decision. It is difficult to imagine either party anticipating that already-interpreted terms were actually moving targets, and it is thus unreasonable to expect that they would have briefed or argued, in the alternative, hypothetical constructions not asserted by their opponent.


