The lawsuits were reported earlier by The New York Times.
The suits speak to the increasingly symbiotic relationship of technology firms. While fiercely competitive, they are often compelled to work closely with another to promote or sell their goods, something unthinkable in older line industries such as autos.
Sonos' actions add to an increasingly challenging slate for new Google-parent CEO Sundar Pichai who was promoted late last year. The company is facing antitrust probes from U.S. federal and state regulators as well as scrutiny over its planned acquisition of fitness tracker Fitbit.
The speaker maker claims in the suits that Google infringed on five of its patents and it is seeking as-yet unspecified damages.
Sonos grew in popularity due to its wireless speakers that could be easily controlled to play in multiple rooms at once from a single digital player. But it was soon challenged by a host of lower-priced rivals, including from Google.
Tuesday's suits mark the second time in recent months that Sonos has sued over alleged patent infringement. In June, it filed a lawsuit against speaker maker Lenbrook, which makes speakers and other audio products, claiming it stole technology while working as a distributor for Sonos.
That case is still pending.
- Washington Post