Seoul Semiconductor v. Finelite — Federal Circuit Affirms Samsung’s Limited Indemnification in LED Patent Dispute

Background

Finelite manufactures LED-based lighting products using LED chips purchased from Samsung Semiconductor. In 2022, Seoul Semiconductor and Seoul Viosys sued Finelite for patent infringement, alleging that Finelite’s LED products infringed fourteen of their U.S. patents relating to LED and LED lighting technology. Finelite responded by filing a third-party complaint against Samsung, seeking indemnification — arguing that since Samsung supplied the allegedly infringing LED chips, Samsung should bear the cost of defending the infringement claims.

The dispute turned on a five-page agreement the parties signed in 2012. On page 2, the agreement contained a statement that Finelite “understands and agrees to Samsung Semiconductor, Inc.’s terms of sale (attached), to pay service charges assessed and to pay reasonable attorneys fees in the event of default.” Pages 4 and 5 contained a “Contract of Sale” with an indemnification clause that limited Samsung’s obligations to “the jurisdiction where title passes from Samsung to Customer” — which was Hong Kong under the C.I.P. shipping terms. The critical question was whether that Contract of Sale was fully incorporated into the agreement.

The Court’s Holding

The Federal Circuit affirmed the district court’s grant of summary judgment for Samsung, holding that the 2012 Agreement unambiguously incorporated the entire Contract of Sale — including the geographic limitation on indemnification.

Judge Lourie, writing for the panel, rejected Finelite’s argument that the disputed statement on page 2 incorporated only two narrow provisions (service charges and attorney fees) from the Contract of Sale. The court found that the statement was best read as a list of obligations — Finelite agreed to the terms of sale, agreed to pay service charges, and agreed to pay attorney fees — not as a broad grant limited by the subsequent items. The continuous pagination (“1 of 5” through “5 of 5”) supported reading the document as a unified whole.

The court also found that Finelite’s attempt to map “service charges” and “attorney fees” onto specific provisions of the Contract of Sale failed. “Service charges” referred back to an earlier provision on the same page, not to “late charges” on page 4. And attorney fees were not synonymous with the broader “collection costs” provision in the Contract of Sale. Finelite’s reading would have rendered nearly half of the five-page agreement surplusage — an outcome that California contract law disfavors. The court likewise rejected Finelite’s reliance on later purchase orders as parol evidence that could not override the clear terms of the integrated agreement.

Key Takeaways

• Supply chain indemnification is only as strong as the contract. Companies purchasing components for use in products should carefully review indemnification provisions, particularly geographic limitations. Here, Hong Kong as the title-transfer jurisdiction meant Samsung owed no indemnity for U.S. patent claims.
• Integrated agreements resist cherry-picking. When a contract is formatted as a single, paginated document and one provision references attached terms, courts will read the entire document as incorporated — not just the provisions a party later wishes it had agreed to.
• Later course of dealing cannot override clear contract language. Subsequent purchase orders and acknowledgments, especially unsigned ones, will not modify unambiguous indemnification terms under California law.

Why It Matters

This case is a cautionary tale for technology manufacturers in patent-heavy supply chains. When a company purchases components from a supplier and later gets sued for patent infringement, the indemnification terms in the original supply agreement will determine who bears the cost. Companies that rely on components from large suppliers like Samsung should negotiate indemnification terms carefully at the outset — paying particular attention to geographic and jurisdictional limitations — because courts will enforce those terms as written, even when the infringement claims arise in a jurisdiction the indemnification clause does not cover.