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Re: PatentPlays post# 23520

Tuesday, 11/29/2016 3:11:53 PM

Tuesday, November 29, 2016 3:11:53 PM

Post# of 46486
Generally the PTAB will not institute another IPR on claims that have been validated.

The threshold for allowing new challenges gets harder once IPR rulings have been issued on already challenged patents.

Therefore litigating on PTAB validated claims is extraordinarily difficult and all the best prior art available has been already thrown at these patents.