Wednesday, July 8, 2026

Patent directory · USPTO A61K / A61P

Patents matching “erythromycin”

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

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This filtered view shows 2 pharmaceutical patents matching "erythromycin" in our USPTO PatentsView index (CPC A61K/A61P). Search matches patent number, title, applicant, and CPC classification codes.

Patent results

2 results for “erythromycin” · 30,257 patents in full index Clear search

  1. US 8436154

    Crystallizing method of erythromycin

    SUNSHINE LAKE PHARMA CO., LTD. · Granted May 7, 2013 · Expires May 2, 2033

    granted
  2. US 7129221

    6,11-bicyclic erythromycin derivatives

    Enanta Pharmaceuticals, Inc. · Granted Oct 31, 2006 · Expires Oct 26, 2026

    granted