The inventor’s conception of an invention begins when he first formulates the in his mind this idea of solving a problem by the means of inventing something. The conception is basically the starting point of the invention.  The inventor gets this idea and then branches out on it creating a number of different examples and prototypes where he can then begin testing his invention to see if it works. This process deals with a lot of test and error which can be a strenuous, but once you have created something that actually works the whole process will all be worth it.