Wednesday, July 8, 2026

Patent directory · USPTO A61K / A61P

Patents matching “rifaximin”

1 pharma patents match "rifaximin" in our USPTO index (A61K/A61P) — applicant, grant date, expiration, and drug links.

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This filtered view shows 1 pharmaceutical patents matching "rifaximin" in our USPTO PatentsView index (CPC A61K/A61P). Search matches patent number, title, applicant, and CPC classification codes.

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1 result for “rifaximin” · 30,257 patents in full index Clear search

  1. US 2022119410

    PHARMACEUTICAL COMPOSITIONS COMPRISING POLYMORPHIC FORMS ALPHA, BETA, AND GAMMA OF RIFAXIMIN

    ALFASIGMA SPA [IT] · Granted Apr 21, 2022 · Expires Apr 16, 2042

    granted