Marion Donovan (1917-1998) was an American inventor. In 1946 she designed the “Boater,” the first reusable waterproof diaper cover, and later laid the groundwork for the modern disposable diaper, filing some twenty patents over the course of her life.
Marion Donovan(1917 — 1998)
Marion Donovan
États-Unis
6 min read
Frequently asked questions
Key Facts
- Born in 1917 in Fort Wayne, Indiana, in the United States
- Invented the “Boater” in 1946, a reusable waterproof diaper made from shower curtains
- Obtained a patent for her invention in 1951, which she later sold
- Laid the groundwork for the modern disposable diaper by designing a diaper made of absorbent paper
- Died in 1998; she was inducted into the National Inventors Hall of Fame in 2015
Works & Achievements
The first reusable waterproof diaper cover, originally made from a shower curtain. It solved the leakage problem that had exasperated millions of parents.
Patent protecting her waterproof cover with snap fasteners. It officially recognized her invention and allowed her to sell her company.
A diaper made of absorbent paper designed to be thrown away after use. Rejected by the manufacturers of the time, it nonetheless foreshadowed today's disposable diapers.
A remarkable personal achievement: at age 40, Donovan took her place at Yale in a field then almost closed to women.
A hanger system that lets you hang many garments in a small space, an example of her inventiveness applied to everyday objects.
A looped dental floss product, one of her last patents, reflecting a creativity that stayed active until the end of her life.
Anecdotes
In 1946, a young mother exasperated by cloth diapers that leaked endlessly, Marion Donovan cut up a plastic shower curtain to sew a waterproof cover over the diaper. She named her invention the “Boater” and later perfected it with nylon parachute fabric, strong and light.
Rather than the safety pins that pricked babies and rusted, Donovan had the idea of adding snap fasteners to close her diaper. This small detail made the object far safer and made a lasting impression when it launched at Saks Fifth Avenue in 1949.
Buoyed by the success of the Boater, Donovan then imagined a fully disposable diaper made of absorbent paper. But the big manufacturers rejected it, convinced the product would never sell. Ten years later, Procter & Gamble launched Pampers on this very principle: her intuition was right, just too far ahead of its time.
In 1951, Marion Donovan sold her company and the rights to the Boater for one million dollars, a considerable sum for the era. Over the course of her life she filed some twenty patents in all, on objects as varied as dental floss and a closet organizer.
Determined never to stop learning, Donovan earned an architecture degree from Yale University in 1958, at a time when women were extremely rare in such studies. She had in fact grown up surrounded by inventors: her father and uncle had designed an industrial machine tool.
Primary Sources
The patent describes a waterproof diaper cover made of a soft, watertight material, fitted with snap fasteners that replace pins, designed to stay dry on the outside while holding moisture in.
“I went to every big name you can think of, and they told me: we don't want it, no woman wants to give up the job of washing diapers. What an absurd notion.”
The article recalls that in the 1940s Marion Donovan invented a waterproof diaper that did not leak, then designed a disposable diaper long before the industry saw its value.
Key Places
Marion Donovan's hometown, where she grew up surrounded by inventors: her father and uncle designed machine tools in their workshop.
Residential suburb where Donovan, a young mother, invented the Boater in the late 1940s, sewing her prototypes at home.
Luxury department store where the Boater first went on sale in 1949, meeting with immediate success among families.
University where Donovan earned a degree in architecture in 1958, being among the very few women admitted to the program at the time.
City where Marion Donovan passed away in 1998, at the age of 81, after a life of invention and entrepreneurship.
Liens externes & ressources
Références
Œuvres
La « Boater », couche-culotte imperméable
1946
Brevet américain n° 2 556 800
1951
Prototype de couche entièrement jetable
début des années 1950
Diplôme d'architecture, université Yale
1958
« The Big Hangup », organiseur de placard
années 1960-1970
« DentaLoop », fil dentaire
années 1990






