noun
inventor
in-VEN-ter/ɪnˈventər/
A person who creates a new device, process, or idea.
The inventor presents a pump prototype beside its design sketch.

Etymology
The roots describe “coming upon” something, and an inventor originally meant a discoverer or someone who finds things out. The meaning shifted to someone who devises and produces something new.
In context
the inventor has to work out his idea mentally before he produces it materially
More examples
- Several inventors attended the exhibition.
- The inventor tested another model.
- She became the inventor of a new locking system.