A plaintiff seeking a permanent injunction must satisfy a four-factor test before a court may grant such relief,`` Justice Clarence Thomas wrote in the unanimous decision, The Wall Street Journal reported.

The ruling comes six weeks after the high court heard the case, which is seen as having broad implications for the high tech industry. The ruling also comes on the heels of a big settlement of a patent dispute between Research in Motion (RIMM:Nasdaq - commentary - research - Cramer`s Take) and closely held patent holder NTP of Virginia.

The question in the eBay case was whether a court should immediately be required to issue an injunction once it finds infringement of a patent. Last year, a federal court denied MercExchange`s request for a court order to prevent eBay from using its patent in the auction giant`s Buy It Now service. eBay and other tech firms have contended that injunctions give too much leverage to patent holders who otherwise would have no way of commercializing their intellectual property.

Any comment on the legal aspect and how it may impact us?