Mondis Technology v. LG Electronics (Fed. Cir., August 8, 2025) 2023-2117

This is an opinion from the United States Court of Appeals for the Federal Circuit, specifically addressing a patent infringement case between Mondis Technology Ltd. (and related entities) and LG Electronics Inc. (and related entities). The core of the appeal revolves around U.S. Patent No. 7,475,180, titled “Display Unit with Communication Controller and Memory for Storing Identification Number for Identifying Display Unit.” The court's decision centers on whether the patent's claims, particularly claims 14 and 15, are invalid due to a lack of adequate written description in the original patent application. Ultimately, the court reversed the lower court's judgment, finding the patent claims invalid because the original description supported identifying a specific display unit, not a "type of" display unit as later amended in the patent claims. As a result, all related issues, including infringement and damages, became moot.

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