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The Federal Circuit Continues to Make Inequitable Conduct More Difficult to Prove



byJohn T. Gallagher
Sills Cummis & Gross P.C. - New York Office

October 12, 2012

Previously published on October 9, 2012

Inequitable conduct is an equitable defense to a charge of patent infringement that, when established, precludes the enforcement of the patent-in-suit. To prove unenforceability based on inequitable conduct, the accused infringer must demonstrate by clear and convincing evidence that the patentee, patent attorney, or patent agent misrepresented or omitted material information with the intent to deceive or mislead the patent examiner into issuing a patent.


 

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