In Battle with Sonos, D&M Takes Yet Another Blow

Sonos Seeks Permanent Injunction Against Infringing Products The battle rages on between D&M Holdings and Sonos over the patent infringement lawsuit brought by Sonos in 2014 against the HEOS by Denon line, and in which Sonos won the first set … Continue reading

Long Simmering Sonos vs. D&M Lawsuit is Now Boiling Over

Trial is Next Week; Sonos Makes Big Mistake Ever since Sonos filed their patent infringement case against D&M Holdings – in reference to its then new HEOS line – things started out like the opening salvo in a boxing match. … Continue reading

In Epic Legal Battle with Sonos, D&M Dinged Again

Will a Change of Judge Bring a Change of Outcome? The battle for patent supremacy between Sonos and D&M Holdings is picking up significant steam. In one 30-day period of this year alone (June), we counted no less than 110 … Continue reading