Grid Code Compliance and Ride-Through Patents
75.1% concentration. The top five assignees hold 130 of the 173 records in scope — a field where a handful of turbine and grid-equipment makers set the claim boundaries. Filings ran from 4 in 2017 to a peak of 21 in 2018, then eased; the 2021-2024 window shows a 13% decline (8 to 7). 2025 and 2026 figures are undercounted because of publication lag and should not be read as a continued drop.
- 1VESTAS WIND SYSTEMS AS80
- 2INGETEAM POWER TECH24
- 3NORDEX ENERGY SPAIN SAU11
- 4UT BATTELLE LLC10
- 5GENERAL ELECTRIC CO5
See the full grid code compliance and ride through 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 on grid code compliance and ride-through?
One assignee leads the field with 80 of the 173 records in scope, well ahead of the rest of the ranked field -- fifth place holds only 5 records and tenth place 2. The top five assignees together account for 75.1% of all records, and the top ten reach 84.4%, so the field is led by a small concentrated group rather than being evenly spread across the 47 companies in the ranking. Most of that concentration comes from the single leading filer's own volume rather than an even spread across the top five.
Is fault ride-through patent filing activity increasing or declining?
Filings peaked at 21 in 2018 and the last fully-published comparison shows a 13% decline from 2021 (8 filings) to 2024 (7 filings). That reads as a plateau off a strong earlier peak rather than a sustained collapse. Figures for 2025 and 2026 are still incomplete because patent publication typically lags filing by around 18 months, so those years should not yet be read as a continued downward trend.
What technology areas do these patents actually cover?
The search combines fault and voltage ride-through with grid code compliance mechanisms such as reactive current injection, frequency response requirements, harmonic limits, certification testing, model validation and protection coordination. In IPC terms, 77.5% of the 173 records classify under H02J (power supply and grid systems) and 54.3% under F03D (wind motors), meaning most innovation is wind-turbine-side grid-interface control rather than generic grid hardware. Motor and generator control (H02P) and protective circuitry (H02H) form a second tier at 22.0% and 13.9% respectively.
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 Grid Code Compliance and Ride Through 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.