Ken,
Are you sure that your US registry update process is working correctly. I have seen several aircraft recently that have owners listed differently here than in the FAA database.
For example, this aircraft
http://www.airport-data.com/aircraft/N1291N.html
is listed here as owned by Cessna Aircraft Company, but the FAA database lists the owner as Comptrol Technologies with a certificate issue date of 1/8/2010.
I usually download the FAA data into a database myself on a weekly basis and this aircraft is definitely listed in that download as owned by Comptrol.
Here are a couple of other examples:
http://www.airport-data.com/aircraft/N525AH.html
http://www.airport-data.com/aircraft/N997CA.html
CK