JUST THE STATS:
PGR: SURVIVAL RATE OF INSTITUTED CLAIMS

Key Finding:

Because the cases analyzed are pre-SAS, this chart shows the survival rate of instituted claims in PGR proceedings that reached a final written decision (as not all claims were instituted).  Prior to the SAS, the institution decision had a large impact on the ultimate outcome, as can be seen by the rate of unpatentability findings shown here. Again, while the sample size was small (172 instituted claims), this rate for PGR results generally conforms to the IPR results.