Inventors

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Mary Kies, First American woman to receive a patent, born 21st March 1752

Margaret E Knight, American Inventor, born 14th February 1838

Josephine Cochrane, American Inventor, born 8th March 1839

Helen Blanchard, American Inventor, born 25th October 1840

Hertha Marks Ayrton, British Engineer & Inventor, born 28th April 1854

Beulah Louise Henry, American Inventor, born 11th February 1887

Marjorie Joyner, Black American Inventor, born 24th October 1896

Katherine Blodgett, American Inventor, born 10th January 1898
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Ruth Wakefield, American Inventor of Chocolate Chip Cookie, born 17th June 1903

Hedy Lamarr, Austrian-American Actress and Inventor, born 9th November 1913
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Bessie Blount, Black American inventor, born 24th November 1914

Marion Donovan, American inventor of the disposable nappy, born 15th October 1917

Marie van Brittan Brown, Black American Nurse and Inventor, born 30th October 1922

Bette Nesmith Graham, American Inventor of liquid paper, born 23rd March 1924