Nah, a patent troll is anyone who trolls with patents. That doesn't need to be the only thing they do. The classic example, SCO, had actual products which weren't related in any way to their patent suits.
Patent troll is a pejorative term used for a person or company who enforces patents against one or more alleged infringers in a manner considered aggressive or opportunistic with no intention to manufacture or market the patented invention.*
http://en.wikipedia.org/wiki/Patent_troll
(this article is referenced: Alexander Poltorak. "On 'Patent Trolls' and Injunctive Relief"., ipfrontline.com, May 12, 2006)
Just being a jerk with a patent dosen't make you a patent troll.
Physician, heal thyself.