RIM Patent Suit Partly Upheld  TORONTO/WASHINGTON (Reuters) - A U.S. appeals court upheld  a patent infringement finding against BlackBerry e-mail device  maker Research In Motion Ltd. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=RIM.TO qtype=sym infotype=info qcat=news"&gt;RIM.TO&lt;/A&gt; on Tuesday, but said  part of an earlier court ruling was flawed and sent the case  back to a lower court.