Prior patents in the area are one of the main reasons (aside from funding) I think Oculus hooked up with Facebook. They were in a position to get squashed under

Prior patents in the area are one of the main reasons (aside from funding) I think Oculus hooked up with Facebook. They were in a position to get squashed under the past 20 years of VR patents and endless lawsuits. At least now the trolls will know the trial is going to be massively expensive and will be fought to the death.