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Topical Antimicrobial Lipid Composition Patent

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Published March 25th, 2026
Detected April 1st, 2026
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Summary

The European Patent Office published patent application EP3723711A1 for Unilever covering topical antimicrobial lipid compositions. The application, filed by Unilever Global IP Limited and Unilever IP Holdings B.V., includes claims related to hair care and skin care formulations with antimicrobial properties. The patent claims priority from June 21, 2019.

What changed

The EPO published patent EP3723711A1 titled 'Topical Composition Comprising Antimicrobial Lipid' with claims covering compositions containing antimicrobial lipids for topical use. Inventors include CHU Chung-Ching, PU Mingming, and XU Yining. The designated states cover all 31 EPC contracting states across the EU and EEA.

This publication provides public notice of the patent claims, allowing third parties to review the scope of protection. Interested parties should assess whether their products may fall within the patent claims and evaluate potential licensing needs or freedom-to-operate considerations. The 18-month publication period from the priority date means competitors have been on notice since December 2020. No immediate compliance action is required as this is a patent publication rather than a regulatory requirement.

What to do next

  1. Review patent claims for overlap with existing or planned product lines
  2. Assess freedom-to-operate if developing similar topical antimicrobial compositions
  3. Evaluate potential licensing opportunities with Unilever if patent claims are relevant to business activities

Source document (simplified)

← EPO Patent Bulletin

TOPICAL COMPOSITION COMPRISING ANTIMICROBIAL LIPID

Publication EP3723711A1 Kind: A1 Mar 25, 2026

Applicants

Unilever Global IP Limited, Unilever IP Holdings B.V.

Inventors

CHU, Chung-Ching, PU, Mingming, XU, Yining

IPC Classifications

A61K 8/34 20060101AFI20190621BHEP A61Q 5/00 20060101ALI20190621BHEP A61Q 5/02 20060101ALI20190621BHEP A61Q 5/12 20060101ALI20190621BHEP A61K 8/68 20060101ALI20190621BHEP A61Q 17/00 20060101ALI20190621BHEP A61Q 19/00 20060101ALI20190621BHEP A61K 8/92 20060101ALI20190621BHEP A61P 17/10 20060101ALI20190621BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

View original document →

Named provisions

Topical Composition Antimicrobial Lipid

Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP3723711A1

Who this affects

Applies to
Pharmaceutical companies Drug manufacturers Investors
Industry sector
3254 Pharmaceutical Manufacturing 3114 Food & Beverage Manufacturing 4411 Retail Trade
Activity scope
Patent Filing Intellectual Property Topical Formulations
Geographic scope
European Union EU

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Pharmaceuticals Healthcare

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