US8942252B2

This case was the precursor to the Inter Partes Review filed by Sonos. The district court proceedings were likely stayed pending the outcome of the IPR, and the ultimate invalidation of the patent claims rendered the infringement claims moot.

This case was filed concurrently with the Sonos litigation and relates to the same patent family. Its outcome was likely impacted by the IPR decision against the asserted patents.

Sonos filed an IPR challenging the validity of claims of US8942252B2 and a related patent. In a final written decision, the PTAB found the challenged claims of US8942252B2 to be unpatentable.