Grid-Forming Inverter for Offshore Platforms Patent Landscape
Grid-Forming Inverter for Offshore Platforms Patent Landscape in 2026
The patent corpus for grid-forming inverters on offshore platforms is highly nascent, comprising 8 patent families concentrated entirely in a single applicant, Scottish Hydro Electric Transmission PLC. Filing activity emerged only from 2022 onward, signalling a very early-stage field with minimal competitive breadth.
Scottish Hydro Electric Transmission PLC holds the entire documented portfolio
Scottish Hydro Electric Transmission PLC ranks first — and sole — among the hundred largest filers in this space, accounting for all 8 patent families identified in scope. This level of concentration is exceptional and reflects an emergent niche rather than a contested technology domain.
The top five filers’ combined share of the hundred largest filers stands at 100%, driven entirely by a single entity. There is no meaningful second tier, third tier, or challenger cluster visible in current evidence.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Scottish Hydro Electric Transmission PLC | 8 |
Scottish Hydro Electric Transmission PLC’s unchallenged position suggests either a genuine first-mover advantage in applying grid-forming inverter principles to offshore transmission infrastructure, or that broader industry activity has not yet been captured through patent filings. Either way, the space is effectively uncontested on the patent record today.
The most recent 18–24 months of filings are likely under-counted due to standard patent publication lag; the apparent absence of filings in 2025–2026 should not be read as a halt in activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity emerged sharply from 2022 with a single dominant technology branch
The filing trend and technology composition charts together reveal a field that is both temporally and technically narrow: all documented activity falls within a four-year window and a single primary IPC branch.
Annual filing trend
Zero filings were recorded from 2017 through 2021. Activity began in 2022, peaked at 4 patent families in 2023, and returned to 2 in 2024. The 2025–2026 zeros reflect publication lag and should not be interpreted as a cessation of R&D.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H02J (Power supply and grid systems) dominates the technology mix, with H02M (Power conversion, AC/DC) appearing as a secondary branch. The concentration in H02J indicates that grid stability, interconnection, and power-flow control are the primary technical claims, while power-electronics conversion hardware is addressed in a supporting role.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Asymmetrical bipolar HVDC control methods and syst…
A method for controlling or operating High Voltage Direct Current (HVDC) converters within an asymmetrical bipolar HVDC system. The outputs of the HVDC converters are controlled by providing each HVDC (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Asymmetrical bipolar HVDC control methods and syst… | 1 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D investment decisions
With only 8 patent families, a single applicant, and activity beginning in 2022, this field is at the earliest identifiable stage of patent-backed innovation. The structural signals below guide where resources can be deployed with the least friction.
Nascent field with no established life-cycle stage
The evidence base of 8 patent families and a filing history beginning only in 2022 does not yet support a formal life-cycle classification. The field is best characterised as pre-growth: technical feasibility is being established through initial filings, but cumulative volume remains too small to confirm sustained trajectory. New entrants would face limited prior-art density.
Early stageSingle-applicant dominance creates both risk and opportunity
Scottish Hydro Electric Transmission PLC holds all 8 patent families, representing 100% of the top hundred filers’ combined total. This extreme concentration means any second entrant would define the competitive landscape rather than join an existing one. The flip side is that a single applicant’s portfolio can be studied in full to identify claim boundaries and technical gaps.
MonopolarNo co-applicant activity recorded
Evidence pending: the collaboration dataset returns no co-filed or jointly assigned patent families. The absence of co-applicants suggests that development to date has been conducted internally by Scottish Hydro Electric Transmission PLC, with no visible academic, supplier, or consortium partnerships in the patent record. This leaves open potential for strategic alliance structures by new entrants.
No co-filersUnited Kingdom is the primary filing jurisdiction, with PCT and EPO coverage
The United Kingdom leads with 4 patent records, followed by the European Patent Office and WIPO (PCT) with 2 records each. The geographic footprint reflects a UK-anchored, regionally protected portfolio consistent with offshore transmission assets in UK North Sea and Scottish waters. Markets outside Europe — including Asia-Pacific offshore hubs — show no coverage in current evidence.
UK-centricGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Scottish Hydro Electric Transmission PLC: sole documented innovator
With a single applicant holding all 8 patent families, the player landscape is defined by one entity. Its technology emphasis and entry trajectory are described below.
Scottish Hydro Electric Transmission PLC
Scottish Hydro Electric Transmission PLC holds all 8 patent families in scope, entering the field as a new entrant with no prior-period baseline — its momentum trend is recorded as a new entrant. Technology emphasis is firmly in H02J 3 (grid interconnection and power supply systems, 8 families) with secondary coverage in H02M 1 and H02M 7 (power conversion hardware, 2 families each). The portfolio is filed across the United Kingdom, EPO, and PCT routes, consistent with protecting transmission-infrastructure innovations across European offshore markets.
families: 8No challenger identified
No second applicant appears in the ranking evidence. The challenger position is vacant in current data, indicating either that competing organisations have not yet filed in this specific niche or that filings remain unpublished. This creates a structurally open challenger slot for any organisation active in offshore HVDC or grid-forming control technology.
families: —| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Scottish Hydro Electric Transmission PLC | 8 | ▲ new entrant |
Under-served adjacent branches worth monitoring
The whitespace dataset returns no pre-computed candidates for this corpus. The observations below are drawn from the relative sparsity of secondary IPC branches in the technology composition evidence and carry inherent uncertainty given the small corpus size.
H02M power-conversion hardware for offshore grid-forming
H02M (Power conversion, AC/DC) appears in only 2 patent records against 8 in H02J, indicating that the inverter hardware layer — converter topologies, modulation strategies, and fault-ride-through circuits specifically adapted for offshore grid-forming operation — is sparsely covered relative to the grid-systems layer. Plausible entry path: organisations with existing HVDC converter IP could extend claims into offshore grid-forming control architectures where H02M and H02J overlap.
Search this in Eureka →Protection and control systems for isolated offshore AC networks
The current portfolio is anchored in grid-supply and conversion IPC classes, with no evidence of filings addressing protection relaying, islanding detection, or fault isolation specifically for offshore isolated AC microgrids enabled by grid-forming inverters. This branch sits adjacent to H02J and H02H and is sparse in the current evidence. Entry would require combining grid-forming control expertise with marine or offshore protection engineering.
Search this in Eureka →How leaders differ by technology route
Strength of each leader across the main technology routes.
| Player | H02J 3 · Power supply & grid systems | H02M 1 · Power conversion (AC/DC etc.) | H02M 7 · Power conversion (AC/DC etc.) |
|---|---|---|---|
| Scottish Hydro Electric Transmission PLC | Strong · 8 | Moderate · 2 | Moderate · 2 |
Frequently asked questions
The current evidence identifies 8 patent families in scope for grid-forming inverter technology applied to offshore platforms.
Scottish Hydro Electric Transmission PLC is the sole documented applicant, holding all 8 patent families identified in the ranking.
Based on the annual trend data, filing activity began in 2022 following zero filings from 2017 through 2021, with a peak of 4 families recorded in 2023.
The portfolio spans the United Kingdom, the European Patent Office (EPO), and WIPO via the PCT route. No filings are documented in Asia-Pacific or North American jurisdictions in current evidence.
H02J (Power supply and grid systems) is the dominant branch, present across all 8 patent records. H02M (Power conversion, AC/DC) appears as a secondary branch with 2 patent records, covering converter hardware aspects.
No co-applicant or jointly assigned filings are recorded in current evidence. All documented patent families are attributed solely to Scottish Hydro Electric Transmission PLC.
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Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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