EPISODE · Feb 24, 2026 · 2 MIN
Gideon Korrell Talks About When Courts Can Ignore PTAB Validity Findings
from Gideon Korrell · host Gideon Korrell
In this episode, Gideon Korrell breaks down when district courts can disregard PTAB validity findings. Using the Federal Circuit’s Inland Diamond v. Cherry Optical decision, he explains why issue preclusion fails across different proof standards, how claim construction matters, and what this means for litigants navigating parallel PTAB and district court battles.
What this episode covers
In this episode, Gideon Korrell breaks down when district courts can disregard PTAB validity findings. Using the Federal Circuit’s Inland Diamond v. Cherry Optical decision, he explains why issue preclusion fails across different proof standards, how claim construction matters, and what this means for litigants navigating parallel PTAB and district court battles.
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Gideon Korrell Talks About When Courts Can Ignore PTAB Validity Findings
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