Gideon Korrell Talks About When Courts Can Ignore PTAB Validity Findings
From Gideon Korrell by Gideon Korrell
February 24, 2026 · 2 min
About this episode
Gideon Korrell discusses when district courts can disregard PTAB validity findings and the implications for litigants.
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.
People in this episode
Host: Gideon Korrell
Topics covered
- PTAB
- validity findings
- district courts
- issue preclusion
- claim construction
Keywords
- Inland Diamond
- Cherry Optical
- litigation
- proof standards
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