There is plenty of precedent for laws which pierce the corporate veil in case of fraud or abuse. Such laws have yet to dissuade the formation of new corporation

There is plenty of precedent for laws which pierce the corporate veil in case of fraud or abuse. Such laws have yet to dissuade the formation of new corporations, and there is no reason to suspect that allowing it in the case of patent trolls would result in anything other than dissuading patent trolling.