What are governmental grants to inventors assuring them of the exclusive legal right to produce and sell their inventions for a period of years?

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Patents are grants provided by the government to inventors, giving them exclusive legal rights to produce and sell their inventions for a certain period of time, usually 20 years from the date of application. This is to encourage and protect innovation while also providing an opportunity for inventors to profit from their ideas. Trademarks and copyrights are different types of intellectual property protection that do not apply specifically to inventions.

What Are Governmental Grants to Inventors Assuring Them of the Exclusive