The Little-Known Story Of Mary Kenner, The First Black American Woman To Earn Five Patents
U.S.
Patent 3,322,263, granted 1966: An improved carrier attachment for an invalid walker, designed to allow people using walking aids to transport objects without using their hands.
U.S.
Patent 3,745,595, granted 1973: An improved ashtray incorporating a moist sponge attachment to more completely and safely extinguish cigarettes.
U.S.
Patent 3,866,940, granted 1975: An improved bathroom tissue holder incorporating an attached pocket or receptacle for storing additional rolls or other small bathroom items.
Five patents.