After weeks of testimony and proceedings, including statements from Mark Zuckerberg, the Facebook/Oculus vs. ZeniMax case has reached an important milestone. Closing arguments were heard on Thursday, with the case now in the hands of a Texas federal jury.

As reported by Law360, ZeniMax asked a jury on Thursday to award the Fallout and Elder Scrolls parent company $6 billion over claims that the Oculus Rift headset was made using stolen trade secrets.

Oculus higher-ups are also potentially on the hook for millions of dollars over claims of trade secret theft. ZeniMax wants $101.4 million from Oculus CTO John Carmack, $206 million from Palmer Luckey, and $427 million from former Oculus CEO Brendan Iribe.

The crux of the case is ZeniMax's claim that Oculus Rift would have never become a reality were it not for Luckey and Carmack collaborating on the project--while Carmack was still at ZeniMax.

"ZeniMax alleges that the entirety of Oculus is built on a foundation of stolen code and stolen ideas and that the innovations the company has since reached would not be possible without modifications Carmack made to a prototype virtual reality headset built by Luckey, and without two virtual reality versions of video games coded by Carmack to function on the modified Oculus headset," Law360 reported.

ZeniMax attorney Tony Sammi said in his closing argument, "We cannot allow, in this country, corporations that are seemingly respectable, to act like this."

For its part, Facebook acknowledged that Carmack played an important role in helping to get Oculus Rift off the ground. But the company denies using code for the VR headset that Carmack wrote at ZeniMax and instead insists that Oculus built the technology entirely by itself.

There is no court session scheduled for today, so jury deliberations will start on Monday morning. Keep checking back with GameSpot for the latest on this case.