On-Sale Bar Doesn't Cover Secret Prior Art, Justices Told

By Kevin Penton (August 28, 2018, 4:31 PM EDT) -- The America Invents Act amended the so-called on-sale bar to align U.S. patent law with other countries and eliminate secret prior art from being used to invalidate patents, one of the law's main sponsors has told the U.S. Supreme Court in a case involving a Helsinn nausea drug patent....

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