Pyriofenone Patent Landscape Analysis

Pyriofenone is a powdery mildew fungicide developed by Ishihara Sangyo Kaisha (ISK), commercialised through brands such as Property®.

The retained landscape covers 38 patent families across 15 consolidated owner groups. Fungicide combination is the thickest protection layer (32 families), with manufacturing route and formulation claims providing additional constraint.

16 of the 38 retained families carry a grant or national pending reading. 13 families are held by China-based applicants. 5 live families have a nominal term ending within five years. Position as at November 2026.

This 39-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.