The EPO published Unilever's patent EP3487495A1 covering pyrrol-2-one compounds (4-(4-chlorophenyl)-5-methylene-pyrrol-2-one and 5-methylene-4-(p-tolyl)pyrrol-2-one) for use in treating bacterial skin lesions. Inventors include Neil Parry James, Paolo Pantalone, and Paul Williams. The patent is classified under A61K 31/4015, A61P 31/00 and is designated across 31 European states including 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, and TR.

This is a patent publication providing intellectual property protection rather than imposing regulatory compliance requirements. Pharmaceutical companies developing competing antibacterial skin treatments should review the patent scope for potential licensing considerations or to inform research into non-infringing alternatives. No immediate compliance actions are required.