Sonos sues Denon for patent infringement

Sonos filed a patent-infringement lawsuit against D+M Group over the Heos wireless multiroom-audio system launched earlier this year by Denon. In its suit in US District Court in Delaware, Sonos also complained that Denon “copied various aspects of Sonos’s marketing and branding,” but Sonos didn’t sue over those complaints. And in a blog post, Sonos co-founder and general counsel Craig Shelburne complained that “several companies have entered the wireless home audio space with product features, designs and messaging strikingly similar to Sonos, without truly moving the experience forward in any way.”.