Sony Computer Entertainment America is being taken to court by California-based Parallel Processing Corporation over the Cell chip in the PlayStation 3.
The company alleges that Sony products infringe on a patent approved in 1991 for "synchronised parallel processing with shared memory," according to a report on GameSpot.
The complaint states that the infringement is "causing irreparable harm and monetary damage," to the company.
Parallel Processing Corporation is seeking damages and fees, as well as the impounding and destruction of all Sony products infringing on the patent.