Mary Elizabeth Anderson (February 19, 1866 – June 27, 1953) was an American realestate developer and inventor of the windshield wiper blade.
On November 10, 1903 Anderson was granted the first patent for an automatic car window cleaning device controlled from inside the car. It was called the windshield wiper.
In 1905 Anderson tried to sell the rights to her invention through a Canadian firm, but they rejected her application saying "we do not consider it to be of such commercial value as would warrant our undertaking its sale."
After the patent expired in 1920, Anderson's basic design became standard equipment. In 1922, Cadillac became the first car manufacturer to adopt her windshield wiper invention as standard equipment.
Ms. Anderson never received a penny for her invention.