You may want to reach out to some of your competitors and try to find the lawyers they used (especially the dismissed ones). If there are any court records they may show this.
I second this thought. Everyone hates patent trolls and it's very possible some of these companies might relish another opportunity to force this one to "lose".
They’re a one person company, and I assume their competitors are not exactly Google and Facebook either. Surely there’s enough market share at that level to allow for some compassion and basic human decency? Not everyone has to be ruthless 100% of the time
