Guitar Hero Videogame Does Not Infringe: Court Rocks Gibson Guitar’s Patent Infringement Lawsuit On Summary Judgment is a follow-up on Gibson's lawsuit versus EA and Harmonix claiming a patent they hold applies to Guitar Hero and Rock Band. It sounds like the proceedings didn't go well for Gibson, as the court said the guitar maker's interpretation of its patent could also apply to pressing the button on a DVD remote or tapping rhythmically with a pencil, and the court also ruled: "Gibson’s doctrine of equivalents arguments border on the frivolous."