Usually, they are professional patent filers. The think of something, patent it, then profit when someone actually does it. There are people who do develop ideas, then patent them, so, yes. read more
Many inventors believe that the success of their product begins and ends with "the big idea." In reality, the "idea" is a small component of the overall process. The most successful inventors I have met actually have many ideas, and only act on the ones that are the most viable and offer the path of least resistance to market. read more