(Telecompaper) Apple and Ericsson have filed lawsuits against each other after Apple declined to renew its license for Ericsson technology under the proposed terms. Ericsson said their licensign agreement expired recently, and despite two years of negotiations, they were unable to agree the terms of a new deal. Every Apple smartphone and tablet with cellular capability uses technology from Ericsson. Apple has filed a lawsuit asking the US District Court for the Northern District of California to find that it does not infringe a small subset of Ericsson's patents. In response Ericsson filed a complaint in the US District Court for the Eastern District of Texas requesting the court to determine if its global licensing offer for Ericsson's standard-essential patents to Apple is fair, reasonable and non-discriminatory (FRAND). Ericsson said it hoped to reach "a mutually beneficial resolution with Apple" and extend the companies' partnership.