I'm not a lawyer but this patent troll litigation would seem to be a textbook case for estoppel by acquiescence. [1] These patent trolls are deliberately waiti

I'm not a lawyer but this patent troll litigation would seem to be a textbook case for estoppel by acquiescence. [1] These patent trolls are deliberately waiting until the patents are firmly established norms in the industry so that finding alternatives are that much harder. Furthermore, the trolls wrongly allow time to go by so that they can claim a higher damage reward than they otherwise would have. [1] http://en.wikipedia.org/wiki/Estoppel_by_acquiescence http://en.wikipedia.org/wiki/Estoppel_by_acquiescence