Tell me about patent the and its tenure

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A patent is a legal protection granted to inventors for their inventions, giving them exclusive rights for a certain period of time.

Patents are granted by government agencies to protect the intellectual property of inventors.
The tenure of a patent is typically 20 years from the date of filing, during which the inventor has exclusive rights to the invention.
During the tenure of a patent, the inventor can prevent others from making, using, selling, or importing the patented invention without permission.
After the patent expires, the invention enters the public domain and can be freely used by anyone.
Examples of patented inventions include pharmaceutical drugs, electronic devices, and software algorithms.

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