Just one month after Delaware District Court judge Richard G. Andrews ruled against D&M Holdings’ attempt to have four key Sonos patents invalidated, we learn that Sonos was successful in winning a dismissal of three of D&M Holdings’ counterclaims of patent infringement against them. However, four additional counterclaims filed by D&M survived the challenge and the counter-lawsuit will continue.
D&M Holdings Inc.
Judge Makes Two Key Decisions
In revisting the long-running saga of Sonos, Inc. vs. D&M Holdings, Inc. et. al., we find that after a series of skirmishes over scheduling issues – such as deadlines for filings and responses, and new claims and counterclaims filed – there appears to be a concerted effort by both parties to ratchet up the pressure. So far, it appears to our non-legally educated eyes that Sonos has a slight edge in this game, winning the scheduling skirmish and winning the right to expand the number of patents at issue.