One who invents or finds out something. 2. The patent laws of the United States authorize a patent to be issued to the original inventor; if the invention is suggested by another, he is not the inventor within the meaning of those laws; but in that case the suggestion must be of the specific process or machine; for a general theoretical suggestion, as that steam might be applied to the navigation of the air or water, without pointing out by what specific process or machine that could be accomplished, would not be such a suggestion as to deprive the person to whom it had been made from being considered as the inventor. One who finds out or contrives some new thing; one who devises some new art, manufacture, mechanical appliance, or process; one who invents a patentable contrivance.
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TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.