That's the application, the actual granted patent seems to be: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-adv.

That's the application, the actual granted patent seems to be: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-adv.htm&r=1&f=G&l=50&d=PALL&S1=07716180&OS=PN/07716180&RS=PN/07716180 http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec... (note that the date is May 11, 2010 - last week)