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To quality for a patent, the invention must be useful for some purpose – however, this hurdle is relatively easy to overcome; to be denied a patent under this requirement, the invention has to be totally incapable of achieving any useful result. However, this doesn’t mean that inventions always meet this requirement. A patent application can be denied under the usefulness requirement if the applicant fails to disclose enough information about the patent to make its utility apparent, of if the applicant asserted that the invention could do something that it obviously could not.

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