Actress Hedy Lamarr didn't just act; she also invented a frequency-hopping system that led to the development of WiFi.

Several items that we use in our everyday life were invented by women. The Patent and Trademark office of the United States released a report in the U.S. innovation economy in July 2020. The finding of the report’s include:

Single woman inventor patents increased from 20.7% in 2016 to 21.9% by the end of 2019
There is a continuous increase in the number of women entering and staying active in the patent system than seen ever before
Woman inventors receiving patents increased from 12.1% in 2016 to 12.8% in 2019

Let’s take a look back at some of the key inventions by women inventors, that changed the world:

1. Circular saw

Inventor: Tabitha Babbitt
Year: 1812

Babbit lived in the Shaker community and worked as a weaver. She noticed people having difficulty cutting wood with a pit saw. This type of saw required 2 people to use it, and it only cut wood in a single direction. To provide a solution to the problem she attached a circular blade to a spinning wheel which resulted in the invention of the circular saw.

2. Computer algorithm

Inventor: Ada Lovelace
Year: 1843

Ada Lovelace added her own notes when translating the lectures of her mathematics professor. Later, she was credited with penning the world’s first computer algorithm.

3. Dishwasher

Inventor: Josephine Cochran
Year: 1872

Cochran came up with the invention to use water pressure, instead of scrubbers that were used back then, to clean dishes. Although there were other prototypes, Cochran’s design was the most effective one from the rest.

4. Life raft

Inventor: Maria Beasley
Year: 1882

Maria Beasley was a serial inventor who was already credited with the barrel-hopping machine patent. She later designed a life raft with guard rails that was foldable and fireproof. The life rafts created based on her design were used on the Titanic, and saved over 700 lives.

5. Fire escape

Inventor: Anna Connelly
Year: 1887

Connelly invented an external metal staircase which acted as the first fire escape and saved lives from deadly fires. Moreover, her invention resulted in the modification of the New York City building codes, and required residential buildings to have a secondary means of escape for emergencies.

6. Medical syringe

Inventor: Letitia Geer
Year: 1899

Medical practitioners were using syringes that required the use of both hands to administer injections. Geer invented the one-handed syringe that is used by all medical practitioners today.

7. Windshield wiper

Inventor: Mary Anderson
Year: 1903

Anderson was refused by manufacturers when she tried to sell her new windshield cleaning device. However, it was only after 10 years, and after her patent expired, that a similar device became a standard on cars.

8. The first Monopoly game

Inventor: Elizabeth Magie
Year: 1904

“The Landlord’s Game” which was patented in 1904 was initially designed to showcase the evils of unchecked capitalism. Close to 30 years later a man patented a very similar game called Monopoly and sold it to Parker Brothers.

9. Bullet-proof fiber

Inventor: Stephanie Kwolek
Year: 1966

DuPont researcher Stephanie Kwolek, while searching for a lightweight and strong plastic for use in car tires discovered what is now known as Kevlar. This fiber has found numerous applications in canoes, bridge cables and frying pans. Most importantly, it is credited with saving countless lives in the form of bullet-proof vests.

10. Word processor

Inventor: Evelyn Berezin
Year: 1971

Evelyn Berezin is credited with creating the world’s first word processor. She was also an entrepreneur and founded her own company, Redactron to protect her invention.

Inventions by Women