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Ensnarement 101: Anatomy Of An Uncommon Patent Defense

Law360, New York (October 24, 2017, 2:04 PM EDT) -- A recent Federal Circuit decision clearing Boston Scientific Corp. in a $200 million patent case drew attention to the rarely invoked ensnarement defense to infringement. Here's a primer on how the defense works and why attorneys say accused infringers should consider using it more often.

In a ruling last month, the appeals court upheld a judge's decision that the ensnarement defense shielded Boston Scientific from liability in a case where a doctor alleged the company's Express coronary stent is covered by his patent.

Ensnarement bars patent...
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Case Information

Case Title

Jang v. Boston Scientific Corporation

Case Number



Appellate - Federal Circuit

Nature of Suit

830 Patent Infringement (Fed. Question)

Date Filed

December 2, 2015

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