Before Palmer Luckey, the cofounder of the virtual reality gaming company Oculus, built his first prototype for the company’s “Rift” headset, he did work for a two-man Hawaii partnership called Total Recall Technologies. TRT paid Luckey $798 to buy parts to build prototypes for its own head-mounted displays for a 3D 360-degree camera, promising Luckey, who was a teenager at the time, royalties from any TRT devices that might make it to market.

The TRT devices never took off. The Rift did. And after Facebook paid billions for Oculus, TRT sued Luckey and the company in 2015, claiming Luckey’s work on the Rift drew on design features, confidential information and materials provided by TRT.