From: Magnus Olsen
The patnet of vfat have been rejected 2004
http://www.pubpat.org/Protecting.htm#FAT%20PATENT
That was a non-final ruling. See
http://news.com.com/Microsofts+file+system+patent+upheld/2100-1012_3-6025447
.html?part=rss&tag=6025447&subj=news for the latest news (patent upheld).
GvG