>To get an ICLA all legit while you are employed, run it by the legal department of the company you are employed by, and they can give you an idea if any change

>To get an ICLA all legit while you are employed, run it by the legal department of the company you are employed by, and they can give you an idea if any changes to the agreement is needed (and of course, if you are allowed to spend company or private time on the project), and get it signed legally and on file for all parties involved. Done. IME company legal departments are unlikely to indulge this kind of thing unless they owe you a favor. Where they do, their blanket response is usually "no, now go away". Ideally any solution to this problem should take account of corporate legal departments' aversion to extra work and risk.