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Marketplace: Supreme Court Hears Patents Case

A case in the Supreme Court today may determine the fate of millions of inventors' patents. A law says that an invention can't be patented if it is "obvious," but the definition of "obvious" isn't clear after decades of litigation. Now, many companies have filed briefs calling for a change to the rule.

Host Mike Pesca talks to Marketplace's Janet Babin about the case.

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