Did you develop it in collaboration with your university? Although bringing them in would cut massively into money you could make, if you just want to bring th

Did you develop it in collaboration with your university? Although bringing them in would cut massively into money you could make, if you just want to bring this guy to market (as I gather from your "open source" attitude), you could use their legal department to help investigate. My second piece of advice is to not take legal advice from the internet. Unless that advice is "seek a lawyer".