While it is not impossible, I would not view this strategy as a reasonable one w.r.t. generating meaningful income.
Focus on building a real thing, that solves a real problem, and get real people to pay you real money.
Focus on building a real thing, that solves a real problem, and get real people to pay you real money.
What actually matters is the nitty gritty of turning an idea into a real thing. People will pay you for doing this work. Otherwise, they might as well just iterate on one of their own ideas and keep all the profit to themselves.
As mentioned upthread, if you successfully patent your idea you may be able to get some company to pay you licensing fees if they are working on a similar idea. This is just a hedge for them against the possibility of being sued by you.