Fed. Circ. Asked To Reverse Riot Games' PTAB Wins

By Tiffany Hu (September 30, 2019, 4:27 PM EDT) -- A video chat company is asking the Federal Circuit to revive two in-game messaging patents challenged by video game makers Riot Games Inc. and Valve Corp., saying the Patent Trial and Appeal Board ignored its arguments that prior art did not render the patents obvious....

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