The ruling is preliminary and needs to be approved by the ITC's full six-member commission.
"We remain confident that the full commission will ultimately reach a final determination that affirms our position that Apple must be held accountable for free-riding on our technological innovations," Samsung said in a statement. "We are proud of our long history of innovation in the mobile industry and will continue to defend our intellectual-property rights."
Samsung filed this complaint against Apple last August, accusing Apple of infringing on five of its patents with its mobile devices. The case was then carved down to four patents, after Samsung removed a 2005 patent for MP3 music track technology. The remaining four, which the ITC says Apple did not infringe, include:
7,706,348 -- A patent for CDMA wireless technology
7,486,644 -- A patent covering packet transmission on wireless devices
6,771,980 -- A patent covering dialing on smartphones
7,450,114 -- A patent for digital documents