That depends on how useful it is and how popular, so there is no fixed answer to that
it depends if the invention is useful and could get people interested in it.
How much money does a military engineer make on average?
$28,560,111
The main one is the enormous vast majority never make a penny on their invention, no matter how much time and money they put into it.
Anout on average $ 80,000 a year
it depends if the invention is useful and could get people interested in it.
How much money does a military engineer make on average?
1,000,000
5,000
200 million
You mean how much money do psychiatrist make?!. Anyway they make an Average of $192,000 a year.
3.4 million is the average as of 2012.
3.2million on average per season
There is no one inventor, and no one set amount they can make. Many make nothing, a very few can make millions. Depends on the invention, and how much of a market there is for that thing.
The Invention of Lying grossed $32,679,264 worldwide.
300,000 when not much experience but can grow to as much as 650,000
They make an average of $30,000-$90,000 per year.