Well, as it's been said before, lawsuits take a long time. And there's some misinformation here. Although you can patent basic hardware (and as people don't realize, the idea of a game console was owned by Magnavox for the longest time, I think it still is) you cannot patent a genre, so any attempt to patent a block puzzle game would end in failure. There's also a reason for allowing ideas to be patented before the product. Ralf Bear had the idea for a game console in the 60's, and started working on it then. Even though Atari beat them to the punch by a few months with Pong, Magnavox still successfully sued them because A) Pong was a blatant rip off of one of their games, Nolan Bushnell was proved to have seen it, and B) because Patents are awarded based on who had the idea first, not who made it. Which means that you can't patent something that's already out unless you can prove that you came up with it before it was released.
