Background
TiVo Inc. sued EchoStar Communications Corporation — operator of the Dish Network satellite television service — for patent infringement related to digital video recording technology. TiVo alleged that EchoStar’s digital video recorders willfully infringed TiVo’s patents covering the ability to record and play back digital television programming. Willful infringement is significant in patent law because a finding of willfulness can support an award of up to triple damages under 35 U.S.C. § 284.
EchoStar responded by asserting the advice-of-counsel defense — claiming that before proceeding with its accused products, EchoStar received a legal opinion from its in-house counsel concluding that EchoStar’s technology did not infringe TiVo’s patents. Reliance on such an opinion is a classic defense against willfulness, as it shows the alleged infringer had a good-faith belief it was not infringing. In asserting this defense, EchoStar disclosed the in-house opinion but asserted that outside counsel’s work product relating to the same patent remained privileged. TiVo sought access to all of outside counsel’s communications and work product concerning EchoStar’s potential infringement. A discovery dispute followed, leading to this Federal Circuit mandamus proceeding.
The Court’s Holding
The Federal Circuit granted in part and denied in part EchoStar’s petition. Writing for the court, Judge Gajarsa drew a careful distinction between the attorney-client privilege and the work product doctrine, and concluded that the advice-of-counsel defense waives each to a different extent.
On attorney-client privilege: when an infringement defendant asserts the advice-of-counsel defense as to a particular patent, it waives the attorney-client privilege for all communications — from any attorney — concerning the validity, enforceability, and infringement of that patent. The waiver is not limited to the specific opinion on which the defendant relies; it extends to all communications on the same subject matter. Otherwise, defendants could selectively disclose favorable opinions while hiding unfavorable ones, undermining the fairness of the privilege waiver and frustrating the factfinder’s ability to assess whether the defendant acted in good faith.
On work product: the court held that the waiver does not automatically extend to work product that outside counsel prepared but never communicated to the client. Attorney work product that was kept internal — never disclosed to the client — was not part of the advice on which the client relied, and forcing disclosure would not serve the purpose of the waiver rule. However, work product that was communicated to the client remains subject to the waiver, because such communications form part of the advice actually received.
Key Takeaways
- Asserting an advice-of-counsel defense to willful infringement waives attorney-client privilege broadly — for all communications from any attorney about the patent’s validity, enforceability, and infringement, not just the specific opinion disclosed.
- The privilege waiver does not extend to attorney work product that was never communicated to the client, because such material was not part of the advice on which the defendant claims to have relied.
- Attorney work product that was communicated to the client is subject to the same broad waiver as the attorney-client privilege — communication to the client makes it part of the advice received.
- The EchoStar decision established an important framework that governed privilege waivers in patent willfulness cases until the subsequent In re Seagate (2007) decision changed the standard for willfulness itself from a negligence-based test to a subjective objective recklessness standard.
- For patent litigants, the case underscores the serious strategic consequences of asserting advice-of-counsel defenses — defendants must be prepared to disclose all related communications, not just favorable ones.
Why It Matters
In re EchoStar addresses one of the most practically significant questions in patent litigation: what price does a defendant pay for asserting that it relied on legal advice in good faith? The advice-of-counsel defense can be powerful evidence against willful infringement, but it comes at the cost of waiving privilege over all communications about the patent in question. Before EchoStar, there was uncertainty about the exact scope of the waiver — whether it extended to all attorneys who worked on the matter, to all their communications, and to their internal work product.
EchoStar brought clarity by establishing that the subject matter of the waiver is broad (all communications about the patent’s validity, enforceability, and infringement from any attorney), while preserving some protection for work product that was never transmitted to the client. The decision affected litigation strategy significantly: patent defendants considering whether to assert advice-of-counsel defenses had to understand they were opening the door to broad discovery of their entire legal analysis of the patent — not just the specific opinion letter they planned to cite. The rule was partially superseded in 2007 by the en banc Seagate decision, which heightened the standard for willfulness and reduced some of the practical pressure defendants faced.