The software giant sued in August, asking a federal court to rule that its Nokia purchase didn’t breach the company’s contract with Samsung.
That contract calls for the Korean electronics giant to pay Redmond a royalty for each Android phone and tablet it makes.
Microsoft notes in the suit that Samsung paid it $1 billion last year under the patent agreement.
“We are confident that our case is strong and that we will be successful,” Deputy General Counsel David Howard said in a statement on Friday.
“At the same time, Microsoft values and respects our long partnership with Samsung, is committed to it, and expects it to continue.