graeme_p - 5:54 am on Mar 19, 2010 (gmt 0)

In this second appeal, the court again re-affirmed the original ruling and spelled out why that decision was made. In court documents spelling out their reasoning, the three appeal court judges said there was evidence that Microsoft knew i4i technology was patented before it turned up in Office programs.

Which is another reason for the common advice not to search for software patents you might breach (the other is that evidence you knew increases damages).