Egregious cases of patent trolling often involve NPEs that are also not the original applicants. i.e., they buy patents just to use them for trolling. It might

Egregious cases of patent trolling often involve NPEs that are also not the original applicants. i.e., they buy patents just to use them for trolling. It might be possible, and would make a real difference, to target such actors. Once a patent is in the secondary market, an NPE shouldn't be allowed to attempt enforcement.