Sarah Tew/CNET

A U.S. trade agency judge has decided the text-selection feature Samsung has on its mobile devices infringes an Apple patent. If upheld, the ruling could stop Samsung from sending devices to the United States.

The International Trade Commission judge also decided that Samsung did not infringe on the Apple patent that covers how a device detects if a microphone or other device is plugged in to its microphone jack, Reuters reported.

If the commission agrees with the judge on the text-selection issue, the ITC can stop Samsung from importing the several infringing products, including the Galaxy, Transform, and Nexus devices, into the U.S. The full commission, which can overturn or uphold the judge's ruling, is expected to release its final decision in August.