Mary Jones DeLeon (1838 – 1914) – Steam table
Mary Jones DeLeon was among the first black women to be awarded U.S. patents for their inventions, receiving her patent in 1896. Her invention was referred to simply as a “cooking apparatus” in the patent. Still, it was an innovative device that would become the precursor to the modern steam table commonly seen in food buffets today. Before DeLeon’s invention, hot food was often kept warm using chafing dishes, which required frequent refueling and could be dangerous.
DeLeon’s invention utilized steam to keep food at a consistent temperature without an open flame. Her invention featured several compartments, each with its own heating element, allowing different dishes to be kept at different temperatures. This invention was an important step forward in food service technology, making it easier and safer to keep food warm and ready to serve. While her name may not be as well-known as other inventors of her time, her contributions to the food service industry have undoubtedly had a lasting impact.