A Cooking Revolution: Mary Jones De LeonBy: Rebecca Tapscotton February 8, 2021 at 12:15 pm Publication: IPWatchdog.com | Patents & Patent Law

In 1873, Mary Jones De Leon was granted U.S. patent No. 140,253 for her invention titled ”Cooking Apparatus.” De Leon, who resided in Baltimore, Maryland, is believed to be the second black woman to receive a U.S. patent, following Martha Jones in 1868. De Leon’s invention was an apparatus f  Read More>>

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