Sonos, Inc. filed Four Inter Partes Review (IPR) petitions on Wednesday January 21, 2015 against Black Hills Media, LLC for patents US6757517, US7236739, US7742740, and US8050652
Chervon North America, Inc. filed Three Inter Partes Review (IPR) petitions on Wednesday January 21, 2015 against Milwaukee Electric Tool Corporation for patents US7944173, US7554290, and US7999510
