David Howard – Microsoft's Corporate Vice President & Deputy General Counsel, writes on the company's legal blog that "We don't take lightly filing a legal action, especially against a company with which we've enjoyed a long and productive partnership. Unfortunately, even partners sometimes disagree. After spending months trying to resolve our disagreement, Samsung has made clear in a series of letters and discussions that we have a fundamental disagreement as to the meaning of our contract.

Samsung and Microsoft are both large and sophisticated companies. In 2011, after months of painstaking negotiation, Samsung voluntarily entered into a legally binding contract with Microsoft to cross-license IP – an agreement which has been extremely beneficial for both parties. Samsung had been complying with the contract and paying to use Microsoft's IP.

So what changed?

Since Samsung entered into the agreement, its smartphone sales have quadrupled and it is now the leading worldwide player in the smartphone market. Consider this: when Samsung entered into the agreement in 2011, it shipped 82 million Android smartphones. Just three years later, it shipped 314 million Android smartphones. [Source: IDC, WW Quarterly Mobile Phone Tracker – 2014 Q1, Published: May 2014] Samsung predicted it would be successful, but no one imagined their Android smartphone sales would increase this much.

After becoming the leading player in the worldwide smartphone market, Samsung decided late last year to stop complying with its agreement with Microsoft. In September 2013, after Microsoft announced it was acquiring the Nokia Devices and Services business, Samsung began using the acquisition as an excuse to breach its contract. Curiously, Samsung did not ask the court to decide whether the Nokia acquisition invalidated its contract with Microsoft, likely because it knew its position was meritless.

Microsoft and Samsung have a long history of collaboration. Microsoft values and respects our partnership with Samsung and expects it to continue. We are simply asking the Court to settle our disagreement, and we are confident the contract will be enforced."

If new information arises in the coming days that is worthy of a follow-up report, Patently Apple we'll do just that.

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