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Robert William Kearns (March 10, 1927 – February 9, 2005) was an American mechanical engineer, educator and inventor who invented the most common intermittent windshield wiper systems used on most automobiles from 1969 to the present. His first patent for the invention was filed on December 1, 1964, after a few previous designs by other inventors had failed to gain any traction in manufacturing.
Kearns won one of the best known patent infringement cases against Ford Motor Company (1978–1990) and a case against Chrysler Corporation (1982–1992). Having invented and patented the intermittent windshield wiper mechanism, which was useful in light rain or mist, he tried to interest the "Big Three" auto makers (General Motors, Ford, and Chrysler) in licensing the technology. Each rejected his proposal, yet began to install electronic intermittent wipers based on Kearns's design in their cars, beginning in 1969, when Ford rolled out the feature to its Mercury line.
Kearns's legal battle against Ford to protect his invention and patent was the subject of a 1993 article in The New Yorker magazine, which became the basis for a full-length biographical feature film titled Flash of Genius in 2008. Kearns was played by actor Greg Kinnear. Kearns had six children with his wife Phyllis, although they separated, supposedly as a result of the stress from the legal battle. He died of brain cancer at the age of 77.