Leading Edge Erosion Protection Patents: Who Leads, Where the Gaps Are 2026
Leading edge erosion protection patents: mapping who holds the coating and repair claims
83.2% concentration. The top 5 of 18 ranked assignees hold 94 of the 113 records in scope — a field where a handful of filers set the terms for coating and repair claims. Filings rose to a peak of 19 records in 2018, then eased. The measured span from 2021 (5 records) to 2024 (3 records) shows a -40% change — the last three-year window unaffected by publication lag, since 2025 and 2026 are still filling in.
- 1HONTEK CORP56
- 2INEOS STYROLUTION GRP GMBH17
- 3THE BOEING CO9
- 4LM WIND POWER AS7
- 5JOTUN AS5
See the full leading edge erosion protection analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions on this landscape
Who holds the most patents in leading edge erosion protection for wind turbine blades?
The assignee ranking for this dataset covers 18 companies, and it is heavily concentrated: the top 5 hold 94 of the 113 records in scope, which is 83.2% of the total. The single leading assignee accounts for 56 records on its own, close to half the field. This concentration means most new filings are layered on top of, or around, a small set of existing claim holders rather than into open ground.
Is patent filing in leading edge erosion protection still growing?
Filing peaked at 19 records in 2018 and has since cooled; the most recent complete three-year comparison shows 5 records in 2021 falling to 3 in 2024, a -40% change. Data from 2025 onward is still incomplete because publication typically lags filing by around 18 months, so it would be premature to call this a permanent decline. The honest read is that the field has moved past its early filing surge and into a steadier, lower-volume phase.
What technology areas do these patents actually cover?
The bulk of the claim activity sits in coatings and polymer chemistry: C09D coatings, paints and inks appear in 36.3% of the 113 records, C08G condensation polymers in 34.5%, and C08L polymer compositions in 26.5%. Turbine-specific classes are present but smaller — F03D wind motors at 25.7% and F01D turbines at 15.9%. Because a single record can carry multiple IPC classes, these figures add to more than 100% and should be read as coverage shares, not a partition of the field.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Leading Edge Erosion Protection covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.