Sony, Warner, and Universal argue that under state law, the music streaming service must pay license fees for songs recorded before 1972.
Several computer science professors, including Kevin Jeffay of the University of North Carolina, Chapel Hill, testify that Samsung's devices don't infringe Apple's various patents and that Apple's patents aren't valid.
An expert hired by Apple says he reached the amount based on the scale, time span, rivalry between the companies, and belief the patents covered technologies that helped Samsung gain users.
The Justice Department makes its first ever conviction against counterfeit mobile app distributors. The men that ran the AppBucket Web site reportedly distributed more than one million copyrighted apps.
Big Blue says that Twitter has violated three of its patents but that it's willing to negotiate outside of court, according to Twitter's latest SEC filing.
A German company claims that the iPhone maker has violated one of its patents related to cellular technology.
The social network bulks up its patent portfolio -- and ends a patent infringement dispute -- by inking a deal with IBM back in December.
A U.S. federal judge says that the company should pay only $15.1 million for infringement of a 3D patent, ruling the original award "intrinsically excessive."
The settlement heads off a patent trial scheduled for next week that TiVo expected would result in billions of dollars in damages.
Groupon isn't immune to the wave of patent lawsuits hitting the technology industry.