A patent is a legal document. It stops people from copying an inventor’s idea. The U.S. began giving out patents in 1790. Here are some inventions that have received patents.
Eli Whitney got a patent for the cotton gin in 1794. It was a machine that quickly cleaned cotton. This made it easier to create cloth.
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Thomas Edison got a patent for an electric lightbulb in 1880. Edison got more than 1,000 patents for inventions.
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Wilbur and Orville Wright got a patent for a “flying machine” in 1906. They invented the first successful airplane.
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The first iPhone was released in 2007. In 2008, Apple Inc. got patents for its design.