If you work for yourself, take risk and setup your own business, you are an entrepreneur.
If you work in a company, take risk, come up with a innovative concept, get it approved, execute it and take charge of that strategic business unit, you are a intrapreneur.
The difference between creativity and innovation ( Creativity V/s Innovation ) is similar to that of a manager and an entrepreneur.
A manager manages, an entrepreneur executes. Similarly creativity is more on conceptualizing and coming up with amazing path breaking new ideas; Innovation { innovate } is more on executing the creative plan.
So Innovation is what happens when creativity is put into use.
If you come up with a great idea, you are creative. If I use this creative idea by applying it to something and , it becomes innovation.
Einsteins principles are science, apply it to come up with a product offering, thats innovation.