This dataset covers 84 patent families published between 2015 and mid-2026, drawn from a search combining biostimulant terminology with agrochemical and fertiliser classification codes (A01N, C05F, A01P and related subclasses). That figure reflects families, which is the fairer unit for landscape analysis because it neutralises duplicate filings of the same invention across jurisdictions. It should be treated as a snapshot of a specific search scope rather than a count of every biostimulant-related filing worldwide.

Filing rose from 2 families in 2017 to a peak of 26 in 2024, but the midpoint year of 2022 recorded only 11 — well below what a steady upward trend to the 2024 peak would predict. That pattern suggests the growth was concentrated in a short window rather than sustained across the whole period. The partial 2026 count of 10 should not be read as a decline outright, since publication typically lags actual filing by around 18 months.

The PCT route (WIPO) leads with 21 filings, followed closely by India with 16 — a notably strong showing for a single national office. Europe and the United States each recorded 9, with Canada and Mexico at 6 apiece. The strength of direct India filings suggests applicants are protecting formulations in that market specifically, not just relying on PCT national-phase entry.

Almost always alone. Across the full 84-family dataset there are only 3 co-assignee pairings, and one of them — a pairing involving UPM and Green Innovation — accounts for 7 joint filings on its own, making it a clear outlier rather than the norm. For most assignees in this landscape, expect single-applicant filings rather than joint ventures or shared IP arrangements.

WO2026062693A1, filed by an individual applicant, claims a biostimulant composition combining seaweed extract, milk solids and amino acids, optionally with protein hydrolysate, humic substance and macro/micronutrients, along with a preparation method. It matters as a recent representative filing because it shows the multi-ingredient combination approach — seaweed plus amino acid plus optional humic substance — that characterises much of this corpus, rather than single-active-ingredient claims. Anyone drafting around it should look closely at the specific ingredient combination and preparation steps claimed, since combination claims of this type can be narrower than they first appear.