The manufacturer of the Xbox game system, Microsoft, took legal action against Datel over its TurboFire and WildFire wireless controllers. According to Microsoft’s assertions, the controllers infringe upon Microsoft patents and have been sold via the Internet for as much as $50. The Datel controllers design resembles Microsoft’s controllers.
Specifically, four of the patents - 521,015, D522,011, D547,763 and D581,422 - relate to "portions of a gaming controller", another two, D563,480 and D565,668 cover a "portion of a gaming input device having an illuminated region"
Microsoft sued the British concern in a Seattle federal court, asking for a yet undetermined amount of compensatory damages, payment of royalties or profits and an injunction from further sales. Datel, which has a United States unit, has not yet responded to the lawsuit.