In 1963, Robert Kearns was driving in a rainstorm when he came up with an idea: what if windshield wipers could work like human eyelids, blinking intermittently instead of running constantly? It seems obvious now, but at the time, wipers only had two settings: off or on. Kearns spent the next few years perfecting his intermittent wiper design.
By 1967, he had a working prototype and a patent. He pitched his invention to Ford, demonstrating how the wipers could pause between swipes based on rain intensity. Ford executives were impressed. They told Kearns they wanted to use his invention and asked him to show them exactly how it worked.
Then Ford stopped returning his calls. In 1969, Ford released the 1970 Mercury models with intermittent wipers—using Kearns' exact design without his permission and without paying him a cent. Chrysler followed suit shortly after. Both companies had simply copied his invention after he showed them how it worked.
Kearns was devastated. He had poured his life savings into developing this technology. He suffered a mental breakdown and was briefly institutionalized. His marriage fell apart. His obsession with getting justice consumed the next four decades of his life.
In 1978, Kearns sued Ford. He represented himself in court for years because he couldn't afford a lawyer and didn't trust anyone else to argue his case properly. Ford's legal team buried him in paperwork, using every delay tactic possible. They argued that intermittent wipers were "obvious" and not worthy of patent protection.
The case dragged on for over a decade. Kearns turned down multiple settlement offers, some worth millions of dollars, because he wanted Ford to admit they stole his invention. He wanted acknowledgment more than money. His family begged him to settle. He refused.
In 1990—22 years after Ford first stole his design—Kearns finally won. A jury awarded him $10.2 million from Ford. He then sued Chrysler and won another $30 million in 1992. But by then, he had spent decades in legal battles, destroyed his health and relationships, and watched nearly every car manufacturer in the world profit from his invention.
Ford and Chrysler never admitted wrongdoing. They paid the settlements but maintained they had done nothing wrong. The money Kearns won was a fraction of the billions the auto industry made from intermittent wipers over those decades.
The truly infuriating part? Kearns' invention is now in virtually every car on the planet. Every time you adjust your wiper speed in light rain, you're using technology that Robert Kearns invented—and that the auto industry stole from him, suppressed for decades, and only paid for after he spent his entire life fighting in court.
Robert Kearns died in 2005 at age 77. He never got the acknowledgment he wanted, but his story became a symbol of how large corporations can crush individual inventors. His case is now taught in law schools as an example of patent theft and corporate abuse. The intermittent wiper—a simple invention that makes driving safer for everyone—cost one man everything to protect.
