Two kings of the tech world will reportedly duke it out over allegedly unpaid royalties. In the suit, filed in federal court in New York, Microsoft alleges that it entered into a patent-sharing agreement in 2011 by which Samsung was to pay Microsoft a royalty for every Android phone it sells. This was purportedly part of an effort to “work together to develop and market Windows Phone, Microsoft’s mobile software.” Microsoft alleges that Samsung failed to make a royalty payment on time and refused to pay interest on the late payment. The original “heavily redacted complaint” alleges that Samsung has attempted to use Microsoft’s acquisition of Nokia’s phone business as an excuse for not complying with the patent-sharing agreement. Microsoft has since filed an amended complaint, and Samsung has responded with a motion to compel arbitration. The case is Microsoft Corp. v. Samsung Electronics Co., 14-cv-06039, (D.N.Y. 2014).