The patent in question covers such species of segmented colour wheels and used for projection apparatus. Prodisc has furnished this color wheel arguing that it is not within the scope of Oerlikon's patent claims. Oerlikon in return has filed a counter claim at the same court in order to convict Prodisc of patent infringement.
In its judgment the District Court of Düsseldorf has recently dismissed Prodisc's action and decided that the German Patent is indeed infringed by Prodisc's colour wheels. This judgment is appealable.
"These efforts emphasize Oerlikon's firm determination to enforce its patent rightsrelating to the colour wheel patent family," the company says.
(Lee Baldock)
