Bose Corporation has filed a lawsuit against Beats Electronics for copyright infringement, ZDNet reports.
Apple bought Beats for $US2.6 billion in May. That deal is expected to close in September.
The suit was filed today in a U.S. District Court in Delaware and centres on five patents relating to audio signaling and frequency compensation.
Apple is no stranger to patent litigation. The company has fought a prolonged legal battle with rival Samsung that seems to be winding down.
News of the lawsuit was first reported by CNBC:
Business Insider has reached out to both Apple and Beats and will update this post if we hear from either.
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