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Depends on what the invention is.



I did marketing work for a guy who invented and patented an idea for the construction business.



He made lots of calls and sent the CD I created to lots of prospective investors. I think he's going to be a millionaire soon.



Usually people invent things by working for someone and seeing a need for something. Keep an eye out and once you have a good idea, work on it and make sure you patent it. The hardest step is marketing it, but with a little help you can do it.



Good luck.

If you were to come up with a cheaper, dependable fuel cell for a hybrid car, you'd make a bundle.



There's a millionaire working to promote that now, I think.



And T. Boone Pickens, a Texas oil man, is promoting alternate energy sources now, according to the story I saw, he says he's made enough on oil, and wants to start promoting green technologies.