before a scientist is said to have invented something,what are the stages must he/she follow?

Question: before a scientist is said to have invented something,what are the stages must he/she follow?
- Keywords:
  invention
Asked by abab256 to Alex, Rita, Rose, Steven, Susan on 18 Jan 2017.
- Rose Kigathi answered on 18 Jan 2017:
  
  First, they must provide credible evidence that the invention works or is real.
  One must also provide the method they used to come up with the invention.
  It is often necessary that someone else can reproduce your invention.
  Invention is something new. So other scientist and other orgnaizations check that it is new and no one has done it before.
  These days a scientist get patents for new inventions. A patent is like a ownership badge or licence, so that anyone who uses that work can pay the scientist or has to say they used the scientists work.

Question: before a scientist is said to have invented something,what are the stages must he/she follow?