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Thomas L. Jennings...

Image Source: Mental Floss

Topics: African Americans, Chemistry, Civil Rights, Education, Human Rights, Women's Rights

Thomas L. Jennings (1791-1859) was the first African American person to receive a patent in the U.S., paving the way for future inventors of color to gain exclusive rights to their inventions. Born in 1791, Jennings lived and worked in New York City as a tailor and dry cleaner. He invented an early method of dry cleaning called "dry scouring" and patented it in 1821—four years before Paris tailor Jean Baptiste Jolly refined his own chemical technique and established what many people claim was history’s first dry cleaning business.

People objected to an African American receiving a patent, but Jennings had a loophole: He was a free man. At the time, U.S. patent laws said that the "[slavemaster] is the owner of the fruits of the labor of the slave both manual and intellectual"—meaning slaves couldn't legally own their ideas or inventions, but nothing was stopping Jennings. Several decades later, Congress extended patent rights to all African American individuals, both slaves and freedmen.

Jennings used the money from his invention to free the rest of his family and donate to abolitionist causes.
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