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Legacy of In re Rijckaert: Inherency's Limited Role in Obviousness Analysis

Summary by patentlyo.com
by Dennis Crouch The Federal Circuit's 1993 decision in In re Rijckaert, 9 F.3d 1531 (Fed. Cir. 1993), set an important boundary on the use of inherency in obviousness determinations. I recently reread the case and wanted to reintroduce the case that continues to be regularly cited in both patent prosecution and litigation. Rijckaert involved a patent application for a magnetic recording apparatus that established a precise mathematical relation…
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patentlyo.com broke the news in on Monday, May 5, 2025.
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