https://patents.google.com/patent/US20170259177A1/en
EAs dynamic difficulty patent gets leaked they go to court and court decided they never used this patent.
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My dad defended patents and some that had to do with computer software. In fact he was a big player in that arena. If you ever try reading them and the theory behind them the language gets pretty esoteric. But I think you would like patent law. What a patent says is that the patent holder is entitled to rights to the invention for 17 years or else the infringer can be sued in court. I can’t tell from your “they” if it was EA’s competitor who was sued and found never to have used their invention.
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