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     Patents grant an inventor the right to exclude others from producing or using the inventor's discovery or invention for a limited period of time. Patent grants from United States patent office also other laws to protect Fuel Cells Patent . The role of the United States Patent and Trademark Office (USPTO) is to grant patents for the protection of inventions, Fuel Cells Patent and to register trademarks.

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    A patent for an invention is the grant of a property right to the inventor, issued by the USPTO. Generally, the term of a new patent is 20 years from the date on which the application for the patent was filed in the United States or, in special cases, from the date an earlier related application was filed, subject to the payment of maintenance fees. Under certain circumstances, patent term extensions or adjustments may be available.

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