The red part of the bars shows patent lawsuits brought by patent assertion Entities (PAEs, also known as "patent trolls"). Colleen Chien/Patent Assertion And U.S. Innovation hide caption

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When Patents Attack ... Part Two!

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Were these the first podcasts? Caitlin Kenney/NPR hide caption

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Episode 411: Why Preschool Can Save The World

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When Patents Attack

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