If you are severe about an idea and want to see it turned into a entirely fledged invention, it is important to acquire some form of patent safety, at least to the 'patent pending' standing. Without having that, it is unwise to advertise or advertise the thought, as it is simply stolen. Much more than that, organizations you approach will not get you significantly - as without the patent pending standing your idea is just that - an concept.

1. When does an notion become an invention?

Whenever an idea becomes patentable it is referred to as an invention. In practice, this is not usually...