JUST THE STATS:
IPR: AVERAGE GROUNDS PROPOSED/INSTITUTED PER INSTITUTED PETITION

Key Finding: This chart shows the average number of grounds asserted per instituted IPR petition, as compared to the average number of grounds instituted. There has been a noticeable decline in the average number of grounds asserted per petition over time, which may be a response to the PTAB’s past criticism of conclusory arguments and redundant grounds. However, there has also been a decline in the average number of grounds instituted per petition by the PTAB, albeit a more gradual reduction.