No. 25-1373October Term 2025Petition Pending
Trinseo Europe GmbH, Petitioner v. Kellogg Brown & Root, L.L.C., et al.
Trinseo Europe GmbH alleges that Kellogg Brown & Root misappropriated trade secrets involving an integrated industrial system.
Case status
- Current stage
- Petition Pending
- Latest event
- Petition pending
- Decision timing
- No decision timeline until the Court agrees to hear the case.
- What it's about
Trinseo Europe GmbH alleges that Kellogg Brown & Root misappropriated trade secrets involving an integrated industrial system. After a jury awarded Trinseo about $77 million for four of the ten alleged trade secrets, the lower courts set aside the award because Trinseo did not separately apportion its damages among each trade secret; Trinseo asks the Supreme Court to review that requirement.
Question presented
Whether, where a jury finds misappropriation of some but not all alleged trade secrets, the jury’s damages award has no legally sufficient basis unless the trial evidence apportioned damages per trade secret or prescribed a methodology to do so?
- Case path
United States Court of Appeals for the Fifth Circuit / Petition pending
- Area
Petition for review pending
Briefing
What it's about
Trinseo says Kellogg Brown & Root improperly used trade secrets connected to an industrial system licensed as one integrated package. A jury awarded about $77 million after finding misuse of four of 10 alleged secrets, but lower courts set aside the award because damages were not separately divided among the secrets.
Argument
The Court has not scheduled oral argument. Trinseo argues that damages for an integrated package should not have to be artificially divided by trade secret; the lower-court approach required separate apportionment of damages.
Impact
The case could affect how companies prove money losses when several trade secrets work together in one product or system. For example, a company claiming misuse of a package of manufacturing methods may need separate damage evidence for each method, rather than one value for the package.
What is at stake in Trinseo Europe GmbH v. Kellogg Brown & Root?
The dispute is whether damages for an integrated group of trade secrets must be calculated separately for every secret a jury finds was misused.
Who could be affected by this trade-secret damages dispute?
Businesses that license or develop linked industrial methods could face different proof requirements when seeking damages for misuse of several related secrets.
What happens next in Trinseo Europe GmbH v. Kellogg Brown & Root?
The Court may decide whether to hear the case. If it does, it could later schedule oral argument; no argument date is set.
Related cases
Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Sep 3, 2026
- Method
- Methodology