Judge Chhabria Excludes Damages Survey Based on the Survey’s Reliance Upon a Rejected Claim Construction

Feb 24, 2017

Reading Time : 1 min

The court found that the survey that was conducted to determine the damage amount was then wholly inaccurate, since “[t]he combined result is a survey question – and survey responses – targeted at an invention other than the one at issue in this litigation.” The court held that the impact of such an error was not a question of the weight of the expert report, but rather, its admissibility. The court also held that Unwired Planet would not be able to refine and resubmit a different survey because “where the initial effort misses the mark so badly, it would be inappropriate to incentivize overreaching by allowing a second attempt.”

This case underscores the importance of drafting expert reports and related documents in such a manner to account for alternative proposed construction that may ultimately be adopted by the court. The failure to do so may result in the exclusion of the evidence and, depending on the circumstances, the denial of an opportunity to cure the error.       

Unwired Planet, LLC v. Apple, Inc., 3-13-cv-04134 (CAND February 14, 2017, Order) (Chhabria, USDJ).

Share This Insight

Previous Entries

IP Newsflash

December 5, 2025

District courts are split on whether a complaint can provide the required knowledge for post-suit indirect and willful infringement in that same lawsuit. Chief Judge Connolly in the District of Delaware recently confirmed that, consistent with his prior opinions, the complaint cannot serve as the basis for knowledge for either a claim of post-suit indirect infringement or a demand for willfulness-based enhanced damages in that lawsuit.

...

Read More

IP Newsflash

December 3, 2025

The Federal Circuit recently held that a patentee acted as its own lexicographer to define a claim term even though it did not explicitly define the term. Rather, because the patentee consistently and clearly used two terms interchangeably to describe the same structural feature and did so in all of the embodiments in which the feature appeared, the patentee impliedly gave the term its own, unique definition.

...

Read More

IP Newsflash

December 2, 2025

The Federal Circuit recently held an asserted patent was not entitled to its priority date because the priority application lacked written description support for the asserted claims. In so doing, the court explained that broad disclosures that do not provide reasonably specific support for narrower claims do not meet the written description requirement. The court also considered whether the inventor’s testimony showed they possessed the full scope of the claimed genus at the priority date or whether it was more likely the inventors first became aware of the claimed embodiments from public disclosures of the accused product.

...

Read More

IP Newsflash

December 1, 2025

In a Hatch-Waxman case, the District of Delaware denied a motion for summary judgment seeking to apply the ANDA filing date as the date of the hypothetical negotiation used to calculate reasonable royalty damages. Instead, the court determined that the appropriate date to use for the hypothetical negotiation is the launch date.

...

Read More

© 2025 Akin Gump Strauss Hauer & Feld LLP. All rights reserved. Attorney advertising. This document is distributed for informational use only; it does not constitute legal advice and should not be used as such. Prior results do not guarantee a similar outcome. Akin is the practicing name of Akin Gump LLP, a New York limited liability partnership authorized and regulated by the Solicitors Regulation Authority under number 267321. A list of the partners is available for inspection at Eighth Floor, Ten Bishops Square, London E1 6EG. For more information about Akin Gump LLP, Akin Gump Strauss Hauer & Feld LLP and other associated entities under which the Akin Gump network operates worldwide, please see our Legal Notices page.