If you are serious about an notion and want to see it turned into a fully fledged invention, it is important to obtain some kind of patent safety, at least to the 'patent pending' standing. With no that, it is unwise to promote or ideas for inventions promote the concept, as it is effortlessly stolen. More than that, companies you technique will not consider you critically - as with out the patent pending status your thought is just that - an idea.

1. When does an idea turn into an idea for an invention invention?

Whenever an concept gets patentable it is referred to as an invention.... […]