Apple has lost in a long-running dispute with Samsung over the use of a technology that enables its devices to run multiple 3G services at the same time.

The complaint against Apple about the infringement of four patents was originally filed by Samsung in 2011. The US International Trade Commission initially found that the patents were invalid or not infringed but after a two-year review process, one of Samsungs claims has been upheld. The three further claims, including one relating to the call-making function, have not been successful.

There is now a 60-day review period in which Apple can contest the decision, after which, the company would no longer be able to sell its iPhone 4 and iPad 3G in the US. The iPhone 3, iPhone 3GS and iPad 2 3G were also included in the ITCs ruling but all of these models have been discontinued.

President Obama has the ultimate decision on whether the import ban will be made, although it is rare for a premier to overturn such a ruling. The commission did note, however, that it may not be in consumers’ interests for sales of Apple products to be stopped.

An Apple spokesperson said that the decision will have no impact on the availability of Apple products in the United States.