Handheld maker palmOne said Thursday that a federal appeals court upheld a ruling that <A HREF="http://news.zdnet.com/2110-1040_22-5515731.html?tag=zdnn.alert">its products do not infringe</A> on two NCR patents. In March 2001, NCR sued Palm and Handspring, alleging the companies infringed patents for a type of "portable personal terminal." NCR had been appealing a district court ruling that had sided with palmOne.