USPTO Allows Claims in Alnylam RNAi Patent Application | GenomeWeb

Alnylam Pharmaceuticals said this week that the US Patent and Trademark Office has allowed a patent application covering compositions and methods for siRNAs.

The application, No. 20070275465, is entitled, "Double-Stranded Ribonucleic Acid with Increased Effectiveness in an Organism." According to Alnylam, claims in the application include a dsRNA of any length having effectiveness in inhibiting a target gene via RNAi; overhang or blunt-end design features; and a 19 to 28 nucleotide region of the antisense strand that is complementary to a target gene.

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