I'm planning to create a biometric time attendance software but stumbled upon ImageWare Systems Inc. patents. Namely US7298873. I did some research and found couple reports on company: pumpstopper and Nasdaq (original : seekingalpha).
I wonder if it is risky to start developing anything that is related to biometrics especially after checking ImageWare one of latest corporate calls (mp3), where a call participant estimates patent portfolio as worth more than the company market cap.
According to the pumpstopper and Nasdaq reports company is a money hole and in view of the reports I'm concerned if company is keen on selling their patent portfolio to patent trolls or start trolling themselves.
In short my question is how to tell if ImageWare patents are of substantial risk?