Recently, u-blox filed a lawsuit against Interdigital in the Southern California District Court to obtain Intermark's FRAND license for 2G, 3G and 4G patents.

In addition, u-blox asked the court to immediately take a temporary restraining order (TRO) and a preliminary ban on Interdigital to avoid any disruption to its existing business.

"u-blox respects the intellectual property rights of others and has always been and continues to be a willing licensee to standard essential patents (SEPs). It is how we do business", says Thomas Seiler, CEO of u-blox, in a press release. "We have therefore asked a court to review and determine the FRAND rate for the patents held by Interdigital. u-blox is a committed licensor for the benefit of our customers, company and shareholders. We believe that our willingness to license also positively distinguishes u-blox within the module industry."