Well, DAZ have an issue claiming copyright to joint parameters (or at the very least enforcing them), but that is a different subject and I don't want to bog this one down with the details. The thing with trademarks is that once they become "common terms" they are unenforceable. They MUST chase up infringements to their trademarks for this reason, because if they don't they lose them. The thing with the "superhero" trademark is that they cannot enforce it now - they should have back in '79. Now it is too late. My sons call the Incredibles "superheroes", they also call the ninja turtles the same thing. If Marvel/DC were to try and enforce this - they would lose, bit time. If they attack someone small enough to bankrupt - the PR fallout would bite them hard. If they attack someone large enough to defend themselves, they lose the trademark. Catch-22 --EK