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...
To view the full article, register now.




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

Law Firms


Law360 Pro Say Podcast
Check out Law360's new podcast, Pro Say, which offers a weekly recap of both the biggest stories and hidden gems from the world of law.