9 million and going strong

U.S. Patent No. 9,000,000 was issued on April 7 to inventor Matthew Carroll for his windshield-washer fluid replenishing system that collects and deionizes rainwater for reuse as washer fluid. The patent may remind some of inventor Robert Kearn’s patent on intermittent windshield wipers made famous in the 2008 film, “Flash of Genius.” In view of the 9 millionth patent, let’s take a look at U …

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