EPO published patent EP3487496A1 granting Unilever intellectual property protection for specific pyrrol-2-one chemical compounds as therapeutic agents against gram negative bacterial infections. The patent application (A1 publication) covers compounds classified under IPC codes A61K 31/4015 and A61K 31/402, with inventors Parry, Pantalone, and Williams. The designated states include all EU member states, Switzerland, Norway, Iceland, and other European countries.

Patent publications do not impose compliance obligations on third parties. Pharmaceutical companies developing similar antibacterial compounds should review this patent to assess potential freedom-to-operate issues. Generic drug manufacturers and researchers in the antimicrobial field should evaluate whether their compounds fall within the scope of the claims before proceeding with development or commercialization activities in designated territories.