Isofetamid Patent Landscape Analysis

Isofetamid is an SDHI fungicide developed by Ishihara Sangyo Kaisha (ISK), commercialised through the Kenja® brand.

The retained landscape covers 32 patent families across 22 consolidated owner groups. Two-active combination is the thickest protection layer (26 families), with manufacturing route and formulation claims providing additional constraint.

19 of the 32 retained families carry a grant or national pending reading. 19 families are held by China-based applicants. Position as at November 2026.

This 35-page report provides a seven-part analysis covering ownership, active-ingredient manufacture, single-active formulation, fixed-dose mixtures, national market entry and owner profiles, with route-level remaining-space notes and an appendix owner directory.

Not a freedom-to-operate opinion.