The Delaware lawsuit is part of a multinational legal battle between the two companies, who disagree on whether Nokia owes Qualcomm royalty payments for use of certain wireless technology patents.
San Diego-based Qualcomm contends that Nokia, a Finnish company that is the world's largest mobile phone maker, owes it royalties under a 2001 licensing agreement.
Nokia claims that it has paid more than a billion dollars to Qualcomm and has satisfied its obligations, and that the patent licensing deal has expired.
