Patent troll is currently a controversial term, susceptible to numerous definitions, none of which are considered satisfactory from the perspective of understanding how patent trolls should be treated in law. Definitions include a party that does one or more of the following:
- Purchases a patent, often from a bankrupt firm, and then sues another company by claiming that one of its products infringes on the purchased patent;
- Enforces patents against purported infringers without itself intending to manufacture the patented product or supply the patented service;
- Enforces patents but has no manufacturing or research base; or
- Focuses its efforts solely on enforcing patent rights.
- Asserts patent infringement claims against non-copiers or against a large industry that is composed of non-copiers
--------- http://en.wikipedia.org/wiki/Patent_Trolls#Etymology_and_def...
I think in this case the fifth definition applies?