Apple won a court ruling that may force Samsung Electronics to stop using some features in its older-model Galaxy smartphones and tablets and gives the iPhone maker a leg up in the four-year-old dispute.

Thursday’s 2-1 ruling comes from the U.S. Court of Appeals for the Federal Circuit, which rebukes the earlier judgement by the U.S. District Judge Lucy Koh, who ruled that Apple did not deserve an injunction and should be satisfied with the monetary damages Samsung has paid.

US Court of Appeals ruled that Apple is within its rights to prohibit Samsung from using the products which are using its patents.

Thursday’s ruling found that the patents were important to the sale of Apple’s smartphones and that the company suffered irreparable harm due to Samsung’s infringement.

Calling Apple’s injunction request “unfounded”, a spokeswoman said Samsung will ask the full slate of Federal Circuit judges to review yesterday’s decision. It said that Apple’s proposed injunction is narrow because it does not want to ban the devices from the marketplace and that the patented features can be removed without a product recall.

The PS4 beat console rival the Xbox One, as well as virtual reality headsets Oculus Rift Crescent Bay and Samsung Gear VR.

In his concurrence, however, Judge Reyna went further, questioning the direction of jurisprudence around injunctions since the eBay decision.

Legal analysts called the decision an important precedent in Apple’s favor and any company seeking to protect its product differentiation. The lawsuit was filed in 2012, and covers devices such as the ageing Galaxy S3.

In a positive sign, both Apple and Samsung have said they’re up for working with a mediator to bring this case to a proper conclusion, and Apple suggested binding arbitration as well. The patents in question is the slide-to-unlock feature, the autocorrect function and the data detection feature, which allows a user to call and save/call a number sent via email or SMS. Apple said that Samsung stole their ideas and now South Korean company is profiting from everything they’ve invested in.

He called the $50 tablet a “gateway drug” for Amazon to attract new customers to Prime, a $99-a-year shopping program estimated to have about 40 million members.

“This case… presents issues of surpassing importance to the United States economy”, Apple argues in the court filing, according to Fortune.