DuPont analysis is the framework the USPTO and the courts use to weigh whether two trademarks are likely to be confused, from In re E. I. du Pont de Nemours & Co. (1973).

GleanMark runs that analysis in two places, both as part of a larger piece of work rather than as a tool you launch on its own.

Every clearance report scores your proposed mark against the closest conflicts it finds on the USPTO register, and DuPont factor analysis runs on the top conflicts as part of the report. It is included in the report price — not metered and not charged separately — and the GREEN / YELLOW / RED clearance assessment takes the DuPont results into account.

See Running a Clearance Report.

When GleanMark drafts a response to a Section 2(d) likelihood-of-confusion refusal, it works through the DuPont factors against the mark the Examiner cited, pulls supporting evidence from prosecution history and the register, and builds the argument into the draft.

See AI Office Action Drafting.

GleanMark previously offered a separate two-mark Confusion Analysis you could run from the Compare page or the Similar Marks tab, with a shareable public link. That tool is no longer part of the product. DuPont analysis now reaches you through clearance reports and Office Action drafts, where it sits alongside the evidence and the conclusions it supports.