Fifth Circuit Vacates $75 Million Trade Secret Award: What Business Owners Should Know About Damages Apportionment

The U.S. Court of Appeals for the Fifth Circuit recently affirmed a district court's decision to vacate a $75 million jury verdict in Trinseo Europe GmbH v. Kellogg Brown & Root, L.L.C., a case involving the alleged theft of polycarbonate manufacturing technology. The ruling sends a clear message to businesses pursuing trade secret claims: proving that your secrets were stolen is only half the battle. If you cannot clearly tie your damages to each specific trade secret that was actually misappropriated, you risk losing your entire award on appeal.

The Case Behind the Verdict

Trinseo, a specialty chemicals company that acquired polycarbonate production technology originally developed by Dow Chemical, alleged that former Dow employees formed a consulting group and, together with engineering firm KBR, misappropriated ten trade secrets related to Trinseo's manufacturing processes. At trial, the jury found that four of the ten alleged secrets actually qualified as protectable trade secrets and that the defendants had misappropriated all four. The jury awarded Trinseo over $75 million in combined royalty and unjust enrichment damages.

Why the Court Vacated the Award

Despite the liability finding, the Fifth Circuit struck down the damages award because Trinseo's expert failed to apportion damages among the individual trade secrets. The expert's calculations assumed misappropriation of all ten alleged trade secrets, not just the four the jury found were actually taken. The expert offered no methodology for the jury to calculate damages based on fewer than ten secrets, leaving the jury with an all-or-nothing number. The court held that trade secret damages, like patent damages, must reflect only the value attributable to the specific secrets that were proven to have been misappropriated. Bundling everything into one lump sum was not sufficient.

Key Takeaway for Business Owners

This case underscores an important lesson for any company that relies on proprietary processes, formulas, or confidential data to stay competitive. If your trade secrets are ever stolen and you take the case to court, the strength of your damages case matters just as much as the strength of your liability case. Work with your legal team to ensure that each trade secret is individually valued and that your damages model can withstand a challenge even if the jury does not find misappropriation on every claim. Failing to build this kind of precision into your case from the start can mean the difference between a landmark recovery and walking away with nothing.

Businesses should also take this ruling as a reminder to document and categorize their trade secrets carefully. The clearer your records are about what each trade secret is, how it creates value, and how it is distinct from your other proprietary information, the easier it will be to present a clean damages case if misappropriation ever occurs.

Want to learn more about protecting your trade secrets or preparing for a potential misappropriation claim? Schedule a free consultation with Diorio IP Law Group to discuss your options.