Of 20 case, I140 filed to NSC one day of Feb, 2007, 4 already approved, about 3 got ref.
I signed up an account in USCIS, and I searched the status using my Receipt # ±N. If it showed I140, I added it to my portfolio. I added 20 I140 cases to my portfolio, any LUD sent to my email. That is why I have this little report. Just for you refer.