#6 The Dishwasher by Josephine Cochrane
Annoyed by the scrub marks on her favorite fine china, a socialite Josephine Cochrane set out to invent the modern-day dishwasher as we call it.
Cochrane worked on creating a washing machine for her dishes which would have a rack to hold them and water jets.
She made an outline and first model of her dishwasher in a shed behind her house with no engineering knowledge. She got the design patented in 1886.
Soon after, Cochrane started Cochran’s Crescent Washing Machine Company. While her machines were sold to hotels and restaurants initially, in the 1950s, their domestic use surged.
Now the company is known as KitchenAid, which is a member of the Whirlpool Corporation.