The 5 expire between 2014 & 2016, based on when they began, IE 774 was 1st, 737 2nd, not sure if they are in order on the website past that.

No, re-exam validation does not extend them.

Now as far as filing suits, there is a limitation and I could be wrong (probably am!) that we can sue up to 6 years after the patent expiration date. There is also a limitation how far we can go back also, but won't even guess what that is.

Need legal help here...best I can offer.