Ex parte Hozumi

Alternatively usable chemical compounds in a Markush grouping that are not members of a recognized physical, chemical, or art-recognized class share a "single structural similarity" and common use when they share a substantial structural feature essential to a common use.

Written by

A language model, from how the MPEP uses this case rather than from the opinion.

Confidence

high — self-reported, not calibrated against a measured error rate

Human review

Not reviewed by a person

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