INVENTION VS INNOVATION
The invention can be defined as:

"A method, a technique, a new means by which it is possible to solve a given practical problem or answer a question that had no answer."
The invention is a DISCOVERY and design something fundamentally new. Ex: A new chemical molecule, a physical law, electricity production

Innovation on the other hand can be defined as:

"... implementation of a product (good or service) of a new or significantly improved process, a new marketing method, or a new organizational method in business practices, the adoption of any new idea in the market or the company. "OECD (Oslo Manual)

Ex : Prozac, copy machine, bulb light