"Settlement agreement" is noted in the PTAB files as exhibit 1025 ....however, it's not coming up for me at the moment, there are copies of it here on numerous posts.

regarding exhibit 1025

Here's Planks...................................... LINK

Here's mine reordered earlier .......... LINK

For the docket of IPR2015-01470, we'll have to wait a bit to see if the item search is resolved.

doni