A legal expert says ZeniMax may have trouble preventing Oculus from selling the Rift, following a civil verdict that went partially in its favor.

ZeniMax Media says it will consider “seeking an injunction to restrain Oculus and Facebook from their ongoing use of computer code that the jury found infringed ZeniMax’s copyrights” following a $500 million verdict against Oculus and its executives in a recent federal civil suit.

The threat comes in a statement provided to Ars late yesterday, in which ZeniMax cites what it calls “uncontested” evidence of “the theft by John Carmack of Rage source code and thousands of electronic files on a USB storage device which contained ZeniMax VR technology.”

Further in the statement, ZeniMax reiterated its argument that Carmack’s work at ZeniMax represented a “breakthrough” in VR technology and that Oculus’ Palmer Luckey “could not code the software that was the key to solving the issues of VR” on his own. ZeniMax also argues in its statement that Oculus “in writing acknowledged getting critical source code from ZeniMax” and that Oculus programmers “admitted cutting and pasting ZeniMax code into the Oculus SDK.”