How many U.S. patents did Thomas Edison receive?
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1,093
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2,524,035
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3,138,743
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Intellectual Property Office (IPO)
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Madrid Protocol
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1,093
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Intellectual Property Office (IPO)
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United Parcel Service (UPS)
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Lanham Act
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United States Patent and Trademark Office
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The Coca-Cola Company
Answer
20 years