A startup wants every Samsung foldable banned from the US market

A small US firm called Lepton Computing LLC filed a federal lawsuit on April 24, 2026, accusing Samsung of building its entire foldable phone business on stolen technology. The complaint, lodged in the Eastern District of Texas, targets nine patents covering flexible displays, hinge mechanisms, and UI systems — and demands a permanent ban on every Galaxy Z Fold and Z Flip sold in the United States.

The 2013 meetings

The case hinges on a series of meetings Lepton says it held with Samsung back in 2013. According to the complaint, Lepton's engineers shared physical prototypes and detailed technical specifications during discussions about a potential collaboration. That partnership never happened. Samsung went on to launch the Galaxy Fold in September 2019, and Lepton now argues the whole lineup — Fold 3 through Fold 7, Flip 3 through Flip 7, and the conceptual TriFold — is built on those 2013 disclosures, per Bloomberg Law.

The timing problem

There is a catch that Samsung's lawyers will almost certainly exploit. Lepton's core patent — US 12,140,998 B2 — was granted in November 2024, and its earliest registration date is June 2021, a full two years after the Galaxy Fold hit shelves. Lepton counters that its original filings go back to 2010, reports Phandroid, but courts will scrutinize whether those early specs actually describe the hinge architecture Samsung ended up using. That gap is a genuine vulnerability for Lepton's case.

What Lepton wants — and what Samsung risks

The demands are maximalist: compensatory damages, ongoing royalties on every device sold, and a permanent injunction blocking all foldable Samsung handset sales in the US. That last part reads less like an expected outcome and more like a negotiating position designed to push Samsung toward a large settlement.

Samsung hasn't issued a public response. The company has a long track record of defeating patent suits — it employs a large in-house legal team and holds its own extensive IP portfolio built on 15-plus years of foldable R&D.; But the Eastern District of Texas is a plaintiff-friendly venue, and documented evidence of those 2013 meetings could force Samsung to open its internal files during discovery.

The bigger picture

A case this size rarely resolves quickly — expect two to four years of discovery, validity challenges, and potential inter partes review at the USPTO before anything conclusive happens. In the meantime, the Galaxy Z Fold and Z Flip remain on sale as normal. If Lepton does prevail, it would set a precedent that could complicate the broader foldable market at exactly the moment rivals like Huawei — and a rumored Apple foldable — are circling Samsung's premium position.