
In the latest development in the ongoing patent battle between Google and SimpleAir Inc., a Federal Circuit panel agreed with SimpleAir that Google waived a claim construction it asserted on appeal because Google had failed to argue that construction before the PTAB.
SimpleAir originally asserted a series of patents against Google, including U.S. Patent No. 8,601,154 (“the ’154 patent”) directed to a data communication system connecting on-line networks with on-line and off-line computers. Google challenged the validity of the ’154 patent in an IPR. The PTAB determined the challenged claims of the ’154 patent were not invalid, concluding that Google failed to identify in the prior art “a central broadcast server,” recited in the challenged claims. Google appealed the PTAB’s final written decision, and argued that the PTAB erred in its interpretation of this limitation.
Continue Reading Failing to Articulate Desired Claim Construction Before PTAB May Lead to Waiver



A little more than a month after the Delaware district court narrowly interpreted the IPR estoppel provision to suggest that it may not be necessary to include all known grounds so as to avoid estoppel in district court litigation, the same court issued a decision suggesting that the IPR estoppel provision may not be so narrow after all. The decision adds to the growing confusion over the scope of the estoppel provision Congress wrote into the AIA.
