 The Ninth Circuit reversed the district court's order and ruled that Accolade's use of reverse engineering to publish Genesis titles was protected under fair use, and that its alleged violation of Sega trademarks was the fault of Sega.The case is frequently cited in matters involving reverse engineering and fair use under copyright law.In March 1984, Sega Enterprises Ltd. was purchased by its former CEO, David Rosen, along with a group of backers.