I would want to ask a few questions, first. First, is there a particular problem you are trying to solve? Second, is this an issue that the research department wants you to solve? Finally, what exactly do you mean by "configuration management?" It's a term that's tossed about casually sometimes and there are plenty of opportunities for confusion based on individual perception.
There are multiple levels of "configuration management" and each can be addressed somewhat individually. If you're just wanting to preserve the history of conceptual designs, you might be able to get by with just archiving design snapshots; i.e., take a snapshot of the design, append a date to it, and store it off for however long you need.
At the opposite end of the spectrum is "full" configuration management, complete with change tracking, change history, audit trails, version management, change authorization, tagging, ability to back out changes, integration with problem reporting systems, etc. At this level, you need commercial tools to provide adequate support.
Don't know if that helps much. I'll be happy to expand on any of this or go into further depth on particular actions with you.