CAFC Affirms PTAB Ruling That DraftKings Failed to Prove Unpatentability of Gaming Patent Claim

CAFC affirmed PTAB ruling that DraftKings failed to prove unpatentability of AG 18 LLC's gaming patent claim 18 in inter partes review. The '205 patent covers location-based restrictions on networked gaming. PTAB invalidated claims 1-17 and 19-30 but upheld claim 18. CAFC rejected DraftKings' arguments that PTAB abused discretion by refusing late-raised prior art combination and that collateral estoppel applied based on other invalidated claims.