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Intel Corporation v. BeSang Inc. — Fed. Cir. (Oct 6, 2026)
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Intel and BeSang dispute a patent for three-dimensional memory chips. BeSang sued Intel in Oregon in 2023, alleging infringement of its patent. The patent describes adding memory-cell layers above a separately fabricated base to increase chip density. Intel challenged claims one and thirteen through seventeen at the Patent Trial and Appeal Board, arguing that earlier publications made them obvious. Obviousness asks whether an ordinarily skilled person would have arrived at the claimed invention from what was already known. The Board found Intel had not proved any of those claims unpatentable, and Intel now seeks reversal or a new Board review. This appeal concerns patent validity, not…