Fed. Circ. Says Eon TV Patent Indefinite, Backs AT&T, Others

Law360, New York (May 6, 2015, 4:56 PM EDT) -- The Federal Circuit on Wednesday affirmed that an Eon Corp. IP Holdings LLC interactive TV patent asserted against AT&T Mobility LLC, HTC America Inc. and others is invalid as indefinite because it does not include an algorithm for how it performs the claimed software functions.

The appeals court upheld a Delaware judge's 2014 decision that Eon's software patent includes so-called "means-plus-function" claims that are generally indefinite unless they include an algorithm. The appeals court rejected Eon's claim that its patent falls within a narrow exception to that rule.

"The district court made explicit factual findings, based on expert testimony, that each...

Stay ahead of the curve

In the legal profession, information is the key to success. You have to know what’s happening with clients, competitors, practice areas, and industries. Law360 provides the intelligence you need to remain an expert and beat the competition.

  • Access to case data within articles (numbers, filings, courts, nature of suit, and more.)
  • Access to attached documents such as briefs, petitions, complaints, decisions, motions, etc.
  • Create custom alerts for specific article and case topics and so much more!


Hello! I'm Law360's automated support bot.

How can I help you today?

For example, you can type:
  • I forgot my password
  • I took a free trial but didn't get a verification email
  • How do I sign up for a newsletter?
Ask a question!