Invention

Inventor

Year

6-marcaptopurine

Gertrude Belle Elion

1953

Battery Container

Nancy Perkins

1986

Car Heater

Margaret Wilcox

1893

Circular Saw

Tabitha Babbit

1812

Cooking Stove

Elizabeth Hawk

1867

Direct and Return Mailing Envelope

Beulah Henry

1962

Disposable Cell Phone

Randi Altschul

1999

Disposable Diaper

Marion Donovan

1946

Dolly Dips

Beulah Henry

1929

Drinking Fountain Device

Laurene O’Donnell

1985

Electric Hot Water Heater

Ida Forbes

1917

Elevated Railway

Mary Walton

1881

Fire Escape

Anna Connelly

1887

Geobond

Patricia Billings

1997

Globes

Ellen Fitz

1875

Kevlar

Stephanie Kwolek

1964

Life Raft

Maria Beaseley

1882

Liquid Paper

Bette Nesmith Graham

1980

Locomotive Chimney

Mary Walton

1879

Practical Dishwasher

Josephine Cochran

Refrigerator     

Florence Parpart

1914

Self-Cleaning House

Frances Gabe

No patent yet

Wind Shield Wiper

Mary Anderson

1903

Wristies

K.K. Gregory

1997