m moved UNIX Systems Laboratories to Unix System Laboratories: This is the actual name that was used by the corporation. The previous title (with "Systems" plural) was a common error. References: http://www.networkworld.com/news/2004/0730scotries.
'''UNIXUnix SystemsSystem Laboratories''' or '''USL''' was originally organized as part of [[Bell Labs]] in [[1989]]. USL joined with the [[UNIX Software Operation]], also a Bell Laboratories division, in [[1990]]. It assumed responsibility for [[Unix|UNIX]] development and licensing activies. It then became a separate [[wholly-owned subsidiary]], formed, owned, and operated by [[AT&T|American Telephone and Telegraph Corporation]], the parent company of [[Bell Labs]].
In [[1992]] [[Novell]] purchased USL and all of the UNIXUnix assets, including all [[copyright]]s, [[trademark]]s and [[licensing]] contracts.
USL was the plaintiff in the [[USL v. BSDi]] law suit initiated in 1992 [[UNIXUnix SystemsSystem Laboratories]] against [[Berkeley Software Design]], Inc and the [[Regents of the University of California]] over [[intellectual property]] related to [[Unix|UNIX]]. '''USL''' asked the court for a preliminary [[injunction]] that would bar BSDi and the UC Berkeley from distributing the NET-2 software until the case was concluded. '''USL v. BSDi''' was [[Settlement (law)|settled out of court]] 1993 after the judge expressed doubt as to the validity of USL's [[Intellectual property]].
