what is the difference between an invention and an innovation?
Invention is transforming these new thoughts into tangible ideas. Innovation is introducing these ideas to the end-user. Innovation is channeling creativity (managing its application i.e. invention) so as to produce ideas/products that people can and wish to use (i.e. marketable). For an invention, the focus is on novelty and this is a key criterion for patenting.
The real difference between innovation and invention is contextual opinion. If you are curious, have a browse of the 4 year old LinkedIn discussion attempting to distinguish Innovation and Invention.