Yeah..there seem to be 3 main ways that people make the transition
1) Science background + J.D. - they tend to focus on innovation systems, lobbying, or congress it seems
2) Science background + masters or PhD in a technology and public policy program (such as EPP at Carnegie Melon or TPP at MIT) - these guys often work for think tanks, government agencies, and congress. They are very strong in the area because of their training, but also lack a lot of flexibility / fall back options.
3) Pure science/engineering PhD - some people go straight into policy roles at think tanks or government agencies .... but many that enter from this side do so as "amateurs"....who have a primary position as a professor or research scientist and work on policy issues that are important to them through panels for the National Academies, government-sponsored studies, etc.
You may not care...but if you get a shameless plug then I'll shamelessly talk on and on about random issues that interest me and probably few others
(maybe I can be an academic!!).
I think that option 3 will be the path I choose if I decide to go into it - and my wife would probably kill me if I actually considered an MBA or JD at this point!! I didn't realize you guys had the number 1 IP program ... but it does make sense.