NOVELTY, INVENTION & INNOVATION

Novelty is a patentability requirement. An invention is not patentable if the claimed subject matter was disclosed before the date of filing, or before the date of priority if a priority is claimed, of the patent application

Invention is a new composition, device, or process.

The different is that in invention you create something that is totally new but it innovation you develop something that is already exist to become better.

Example

Innovation is a change in the thought process for doing something, or the useful application of new inventions or discoveries
-Innovation is something which is created by the need.
-Take the main idea that has been invented and modified the idea.