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Prior Art Expert Testimony Denial of Institution

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Latest Director Discretionary Denial Decision in iRhythm Provides Valuable Insights

On June 6, 2025, Acting USPTO Director Stewart issued a decision in iRhythm Tech. v. Welch Allyn, Inc., IPR2025-00363, Paper 10 (and four related IPRs), which granted Patent Owner’s request for discretionary denial. This is...more

Jones Day

Expert Testimony That Does Not Disclose Underlying Facts Or Data Entitled To Little Weight

Jones Day on

“Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight.” 37 C.F.R. § 42.65(a). With that principle in mind, the PTAB recently denied institution...more

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