The U.S. Supreme Court has denied Psystar’s request to review a lower court decision that keeps it from selling computers that run Apple’s OS X but that are not made by Apple, reports “CNET.”

The decision not to hear the case upholds a ruling made by the U.S. Court of Appeals for the Ninth Circuit last September that Psystar’s Mac clones violate Apple’s copyrights, the article adds. Apple took Psystar to court in 2008 on claims of copyright-infringement after the company made a business out of purchasing copies of OS X and selling them on hardware it put together under the “OpenMac” moniker.

Psystar claimed that Apple had violated Sherman antitrust rules and other U.S. laws. Psystar claimed in court documents filed in U.S. District Court for San Francisco that Apple engaged in anticompetitive behavior and/or other actions that are in violation of the public policy underlying the federal copyright laws.

In response, Apple said the defendant, Psystar, knowingly infringes Apple’s s copyrights and trademarks, and “induces others to do the same.” Psystar made and sold personal computers that use, without permission, Mac OS X.

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