American Female Inventors & Discoverers

Before she turned her peculiar inventions into a billion-dollar business empire, Joy Mangano had worked as an airline assistant and a waitress. Her best-known invention has been the Miracle Mop, a self-wringing mop made of plastic. She has also penned a memoir and has inspired the 2015 film Joy.

Hedy Lamarr was an Austrian-American actress whose early career was defined by her performance in the controversial Czech erotic film Ecstasy. Apart from gaining popularity as a beautiful Hollywood actress, Hedy Lamarr became known as an inventor after co-inventing frequency-hopping spread spectrum. Her career has inspired several works of art. She was also the inspiration behind the iconic character Catwoman.

Stephanie Kwolek was an American chemist remembered for her invention of Kevlar. She worked at the DuPont Company for over four decades and was awarded the company's Lavoisier Medal for her discovery. In 1995, she was inducted into the National Inventors Hall of Fame, becoming the fourth woman to be inducted. She also won other awards including the Perkin Medal.

Mary Anderson was a real estate developer, rancher, and inventor. She is best known for inventing the windshield wiper blade. She received her first patent for an automatic car window cleaning device controlled from inside the car in 1903. She was inducted into the National Inventors Hall of Fame in 2011, more than half a century after her death.  

Ophthalmologist Patricia Bath is remembered for her pathbreaking invention of the Laserphaco Probe, which made laser cataract surgery possible. The first Black female surgeon at the UCLA Medical Center and the first female faculty staff of the UCLA Jules Stein Eye Institute, she dedicated her life to curing blindness.

The daughter of Jewish immigrants in New York, Gertrude B. Elion excelled in chemistry at Hunter College, where she studied for free, but was initially unable to find a job due to gender bias. The renowned biochemist and pharmacologist later won a Nobel and became a pioneer in medical research.

Olive Dennis was an American engineer whose innovations played a huge role in making railways what it is today. The first female member to become a part of the American Railway Engineering and Maintenance-of-Way Association (AREMA), Olive Dennis is credited with introducing comforts, such as stain-resistant upholstery, ceiling lights, and air-conditioned compartments in passenger cars.