Monster, who helped create the original Beats headphones in 2007, is suing Apple’s Beats Electronics in a San Mateo County Superior Court, USA Today first reported on Tuesday.
The suit, filed on Tuesday and discussed by Monster CEO Noel Lee at CES 2015, says that the Beats co-founders Jimmy Iovine and Dr. Dre concealed the role of Monster and Lee in designing and engineering the headphone line, as well as educating them about engineering, manufacturing, distributing, and selling the headphones that Monster and Lee invented.
Furthermore, the suit brings forth that Monster lost millions from its investments as Beats rose to eventually be acquired by Apple for $3 billion in 2014.
Beats and Monster were in business with each other until 2012, until they both turned their backs on each other. HTC was also an investor in Beats up until 2013, when it put $300 million into the company until Iovine and Dre bought it back.