Thankyou Deadly Yellow for looking that up. A warning to all: the important bit is the section marked "Claims". THis is the bit that our man has to use to prove that the MMO's are in breach.
Now, I think it's worth reiterating the bit of the original story where our sue-happy chappy IS NOT the inventor. The reason he's suing now s because he recently aquired the company that filed the patent way back. He has not sat on it till the time was oppertune, and neither have they as such- I think it's pretty obvious they decided not to bother, as after all they were providing a service to sick kids and didn't have the finacial/legal muscle to do anything. So stop getting your panties in a twist, kiddies.
Anyway, the Claims section is the most important part of the Patent. It explains, in the most horrible legalese, what exactly the patent covers. The defence will try and prove that one or more of those claims is invalidated by prior art. As discused, there's the grounding for a good case there, but then lawyers are involved, and also potentially a non-expert jury.
Patents are horrible. They restrict innovation. They makes life-saving drugs more expensive- but the drug companies argue the patents essentially pay for the research. In my field, it's not uncommon to take out a patent just to stop the competition doing the same thing for twenty years, and then not actually use it- everyone knows what's patented, but can't act. There's good tech locked down in blocking patents, just because it isn't in the marketing strategy of the company that holds it.
Then, when you now you might potentially infringe, trying to figure out if you really do is hellish, thanks to the sort of langauge on display there.
However, patents are fantastic for helping encourage innovation in capitalist society. They drive industrial research forward. Anyone with a better suggestion may step forward.
Forming an angry mob outside a courtroom in Texas will not change thing.
However, please do. What could be funnier on the news than a bunch of angry pasty WoW geeks with placards?