The district court had previously granted Defendant Respironics, Inc.’s
(“Respironics”) unopposed motion to stay the patent infringement action filed by the plaintiff, Zoll, pending an inter partes review (“IPR”) of the patent-in-suit, on which the Patent and Trademark Office (“PTO”) had instituted review. When Respironics filed the motion to stay, it had assured the district court that the length of the stay would not exceed 18 months. Based on this representation, Zoll withdrew its prior opposition to the requested stay and, based largely on the lack of opposition, the district court granted the stay.
After the completion of the IPR proceeding, the PTO confirmed the patentability of Zoll’s patent claims. As explained by the district court, “Zoll now wishes to proceed with the litigation it filed more than 2 1/2 years ago, on December 27, 2012. Oddly, however, and in tension with its prior representations that it was only seeking a stay pending IPR, and that such a stay would not exceed 18 months, Respironics opposes lifting the stay.”
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