Atlanta Gas Light Co. v. Bennett Regulator Guards, Inc, No. 21-1759 (Fed. Cir. 2022)
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Bennett sued Atlanta Gas, a Georgia distributor of natural gas, for infringement of Bennett's patent, directed to an anti-icing device for a gas pressure regulator. Atlanta Gas was served with the complaint on July 18, 2012. That litigation was dismissed without prejudice for lack of personal jurisdiction. On July 18, 2013, Atlanta Gas filed an inter partes review (IPR) petition concerning the patent.
The Patent Trial and Appeal Board rejected Bennett’s argument that Atlanta Gas was time-barred from petitioning for IPR under 35 U.S.C. 315(b) and determined that the challenged claims were unpatentable over the prior art. The Federal Circuit held that Atlanta Gas should have been barred, vacated the unpatentability determination, and remanded with directions to dismiss the IPR and to further consider a sanctions order. Before the Board acted, the Supreme Court held that time-bar determinations were unreviewable, "Thryv," (2020). On remand, the Federal Circuit affirmed the unpatentability determination on the merits and again remanded for the Board to reconsider and finalize its sanctions order. The Board then terminated the proceeding due in part to reconsideration of its decision on the time bar. Atlanta Gas appealed.
The Federal Circuit dismissed, holding that it lacked jurisdiction to review the Board’s decision to vacate its institution decision, a decision made based in part on the Board's evaluation of the time bar and changed Patent and Trademark Office policy.
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