I am not familiar with a lawyer having a patent pending. I do know that ,for years, Budweiser has required a surfer to enter a birthday before entry was granted to their site.
Last year when the draft of this bill was done, I wrote four different versions of the script. One was designed to tie to a nationwide database as they were discussing tying DMV or social security records together. I have a version that requires a valid email addy and a date of birth. Then there is one that just requires the date of birth and the one that
VirgoHippy referenced here is the one I called AV-Lite.
Each of the versions captures date/time, IP address, the url being surfed - basically everything you would get from a counter.
Just like my2257records, it as compliant with the bill as one can get without released regulations. I suspect one of the four versions is pretty damn close to what will be required.
BTW, this bill is targeted at all adult sites - Link Lists, TGPs, free sites, tgp galleries, blogs, etc.