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TwinStrand Biosciences Announces U.S. Patent And Trademark Office's Patent Trial And Appeal Board Rejects Guardant Health's Challenge To Core Patent Underlying Duplex Sequencing

Oct 15, 2026 · 04:03 PM ET· updated 57m ago

TwinStrand Biosciences (TwinStrand), the pioneer in Duplex Sequencing® technology, today announced that the U.S. Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB) has again rejected Guardant Health,

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Why It Matters

A court decided TwinStrand's patent is valid against Guardant's challenge. This means TwinStrand can keep using its technology without Guardant stopping it.

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