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2018

Michigan Law Review

Administrative Law

District courts

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The "Broadest Reasonable Interpretation" And Applying Issue Preclusion To Administrative Patent Claim Construction, Jonathan I. Tietz Jan 2018

The "Broadest Reasonable Interpretation" And Applying Issue Preclusion To Administrative Patent Claim Construction, Jonathan I. Tietz

Michigan Law Review

Inventions are tangible. Yet patents comprise words, and words are imprecise. Thus, disputes over patents involve a process known as “claim construction,” which formally clarifies the meaning of a patent claim’s words and, therefore, the scope of the underlying property right. Adversarial claim construction commonly occurs in various Article III and Article I settings, such as district courts or the Patent Trial and Appeal Board (PTAB). When these proceedings ignore each other’s claim constructions, a patent’s scope can become inconsistent and unpredictable. The doctrine of issue preclusion could help with this problem. The Supreme Court recently reemphasized in B & …