Offshore Wind Turbine for Marine Power Patent Landscape
Offshore Wind Turbine for Marine Power Patent Landscape in 2026
This is a small, highly concentrated niche: 55 patent families are on record and the top five filers account for 56% of the hundred largest filers’ combined output, with Marine Power Systems holding a commanding lead. The field peaked around 2019 and annual filing volume has since eased, placing it in a decline-phase lifecycle, though a handful of new entrants signal continued interest in adjacent marine-energy applications.
Marine Power Systems leads a highly concentrated, small-corpus niche
Marine Power Systems holds the top position with 14 patent families, more than twice the count of the second-ranked applicant, Oasis Marine Ltd (7 patent families), establishing a clear first-tier lead in this narrow technology space.
The top five filers — Marine Power Systems, Oasis Marine Ltd, Sociedad de Caldereria Coalca SA, Energie Propre Prodigy Ltee Prodigy Clean Energy Ltd, and Dehlsen Associates of the Pacific Ltd — together account for 56% of the hundred largest filers’ combined total, indicating a tight oligopoly with limited mid-tier presence.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Marine Power Systems | 14 | |
| 2 | Oasis Marine Ltd | 7 | |
| 3 | Sociedad de Caldereria Coalca SA | 4 | |
| 4 | Energie Propre Prodigy / Prodigy Clean Energy Ltd | 4 | |
| 5 | Dehlsen Associates of the Pacific Ltd | 3 | |
| 6 | Manuel Martinez de Azcoitia Fernandez | 3 | |
| 7 | Alen Co., Ltd. | 3 | |
| 8 | RWE Renewables GmbH | 2 | |
| 9 | Jebb Smith Ltd | 2 | |
| 10 | VTEC Consulting LLC | 2 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Electric Power Development Company | 2 | |
| 12 | Electric Power Research Institute of Guangdong Power Grid Co. | 2 | |
| 13 | Toda Corporation | 2 | |
| 14 | Sociedad de Caldereria Coalca SA | 1 | |
| 15 | Manuel Martinez de Azcoitia Fernandez | 1 | |
| 16 | Huaneng Group Technology Innovation Center Co., Ltd. | 1 | |
| 17 | Nantong Runjini Marine Equipment Co., Ltd. | 1 | |
| 18 | PowerChina Huadong Engineering Corporation Ltd | 1 | |
| 19 | Huaneng Clean Energy Research Institute | 1 | |
| 20 | Manuel Martinez de Azcoitia Fernandez | 1 |
The leaders’ positions imply that the core intellectual property around floating marine wind and wave-energy conversion is largely staked out; new entrants would need to differentiate on sub-system integration, mooring, or power export to avoid the densest coverage zones.
The most recent approximately 18–24 months of filing data are subject to publication lag and likely undercount activity; the apparent drop-off in 2023–2026 figures should not be read as a definitive acceleration of decline.
Filings peaked in 2019 and have eased; wind and marine vessel classes dominate the technology mix
The filing trend chart tracks annual activity from 2017 onward; the technology composition chart breaks the corpus into IPC classes to reveal where inventors have concentrated effort and where coverage is thinner.
Annual filing trend
Filing activity rose sharply from 2 families in 2017 to a peak of 12 in 2019, then oscillated between 8 and 11 families per year through 2022 before dropping sharply in the most recent years — a pattern consistent with the lifecycle assessment of a field easing from its peak. The 2023–2026 figures are subject to publication lag and should be treated as provisional minimums rather than confirmed decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Ships and marine vessels (B63B) and wind motors (F03D) are the two dominant IPC classes, reflecting the hybrid offshore platform nature of the inventions. Hydraulic machines and engines (F03B) is a substantial third branch, indicating significant attention to wave and tidal energy co-integration. Classes such as ship auxiliaries (B63J), power cable installation (H02G), and grid systems (H02J) each carry far fewer records, pointing to under-served sub-domains.
↗ 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.
Power cable arrangement for offshore wind farms
A power cable arrangement, in particular marine power cable, for offshore wind farms, including at least one cable drum device with a cable drum. The power cable arrangement includes at least one power cable wound on the cable drum with at least one cable end configured to pre-installing at a cable connection of a wind energy device. The power cable is… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Offshore and marine vessel-based nuclear reactor c… | 77 |
| 2 | Wind tracing, rotational, semi-submerged raft for … | 36 |
| 3 | Combined structure of a fishing net cage and float… | 34 |
| 4 | Wind and wave desalination vessel | 28 |
| 5 | Renewable energy conversion apparatus | 13 |
| 6 | Renewable energy conversion apparatus | 11 |
| 7 | Renewable energy conversion apparatus | 8 |
| 8 | Marine mooring and electrical connection apparatus… | 7 |
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
The combination of high concentration, a post-peak lifecycle, and a thin mid-tier creates a specific strategic landscape: the barriers in core floating-platform and wind-motor space are real, but adjacent integration sub-systems remain comparatively open.
Field in decline phase from a 2019 peak
The lifecycle assessment places this topic in a decline stage, with annual filings easing back from the 2019 peak of 12 families. The multi-year corpus stands at 55 patent families — small by industry standards — indicating the field never reached the broad commercial adoption phase that drives sustained high-volume filing. New investment should focus on sub-systems not yet heavily claimed rather than duplicating core floating-turbine designs.
Lifecycle: DeclineTop five hold 56% of the hundred largest filers’ output
Marine Power Systems (14 patent families) and Oasis Marine Ltd (7 patent families) form a distinct first tier, with Sociedad de Caldereria Coalca SA and Energie Propre Prodigy Ltee Prodigy Clean Energy Ltd tied at 4 families each in a thin second tier. Below rank five, most applicants hold only 1–2 families, meaning the mid-tier is fragmented and unlikely to mount near-term challenges to the leaders without significant escalation of filing activity.
High ConcentrationNo co-applicant activity detected in this corpus
The collaboration evidence is pending — no co-applicant filings were identified in this dataset. The absence of consortium or joint-development agreements in the patent record is notable for a capital-intensive offshore technology and may reflect early-stage proprietary development strategies or the small overall corpus size. Monitoring future filings for joint-applicant patterns could reveal emerging alliances.
No Co-filings DetectedUS and EPO dominate; Asian and emerging-market coverage is thin
The United States leads with 16 patent records, followed by Europe (EPO) with 11, making the North Atlantic the primary protection zone. China carries 4 records and India 4, despite both markets being major targets for offshore wind deployment. WIPO PCT filings stand at 4, suggesting applicants are not systematically pursuing broad international protection. The thin coverage in key deployment markets — China, India, and Southeast Asia — may reflect strategic gaps or simply the small scale of the leading applicants.
US & EPO DominantGo 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.
Marine Power Systems leads on hydraulic-wind hybrid integration; Oasis Marine anchors on vessel platform design
Two applicants stand well above the rest: Marine Power Systems with a broad multi-class portfolio and Oasis Marine Ltd with a vessel-focused approach. Momentum data also flags Energie Propre Prodigy Ltee Prodigy Clean Energy Ltd as a new entrant with recent activity.
Marine Power Systems
Marine Power Systems leads the corpus with 14 patent families. Its technology emphasis spans hydraulic machines and engines (F03B13, F03B), wind motors (F03D9), and marine vessels (B63B35), indicating a systems-level approach to combined wave-and-wind energy conversion on offshore platforms. No recent-period momentum data is available for this applicant in the evidence, but its portfolio size remains more than double that of any rival.
14 patent familiesEnergie Propre Prodigy Clean Energy
Ranked fourth with 4 patent families, Energie Propre Prodigy Clean Energy Ltd is flagged as a new entrant with recent filing activity (trend: new entrant). Its technology focus spans marine vessels (B63B35), nuclear power plant integration (G21D1), and hydraulic and waterway engineering (E02B17) — an unusual combination that distinguishes it from pure-wind rivals and positions it in the sparsely covered nuclear-marine energy integration space.
4 patent families| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Energie Propre Prodigy / Prodigy Clean Energy Ltd | 1 | ▲ new entrant |
Ship auxiliaries, cable installation, and grid systems are under-served relative to the platform and turbine core
While the B63B and F03D classes are well populated, several adjacent IPC branches show materially fewer records, suggesting areas where the existing patent landscape is thinner. These are observations of relative sparsity; whether they represent viable investment targets depends on technical fit and commercial context.
H02G · Installing power and signal cables
With only 5 patent records and a 4% share among the technology branches identified, submarine cable installation and management for offshore marine wind platforms is comparatively sparse. Given that power export is a critical enabler for any offshore marine energy system, this branch has plausible technical value. Potential entry paths include dynamic cable systems tolerant of floating-platform motion and wet-mate connector technologies adapted for deep-water deployment.
Search this in Eureka →H02J · Power supply and grid systems
Grid integration and power supply management carry only 5 patent records and a 4% share, despite grid connection being a fundamental commercialization bottleneck for offshore marine wind energy. The sparse coverage in H02J suggests that applicants have concentrated on the physical platform and turbine rather than the electrical architecture. Entry opportunities may exist in microgrid control for isolated marine installations, vessel-to-grid power export, and hybrid storage-dispatch management for combined wind-wave systems.
Search this in Eureka →How leading applicants differ across technology routes
Strength of each leader across the main technology routes.
| Player | B63B 35 · Ships & marine vessels | F03B 13 · Hydraulic machines & engines | F03D 13 · Wind motors (wind turbines) | F03D 9 · Wind motors (wind turbines) | B63B 22 · Ships & marine vessels |
|---|---|---|---|---|---|
| Marine Power Systems | Emerging · 2 | Strong · 12 | Emerging · 2 | Strong · 11 | Absent |
| Alen Co., Ltd. | Strong · 3 | Absent | Strong · 3 | Absent | Absent |
| Sociedad de Caldereria Coalca SA | Strong · 2 | Strong · 2 | Strong · 2 | Absent | Absent |
| Jebb Smith Ltd | Absent | Absent | Absent | Absent | Strong · 5 |
| Energie Propre Prodigy / Prodigy Clean Energy Ltd | Strong · 4 | Absent | Absent | Absent | Absent |
Frequently asked questions
The corpus contains 55 patent families in scope. This is a small niche corpus compared with mainstream offshore wind or tidal energy fields, reflecting the specialized nature of combined offshore wind and marine power platforms.
Marine Power Systems is the top filer with 14 patent families, followed by Oasis Marine Ltd with 7 patent families. Together with the next three ranked applicants, these five account for 56% of the hundred largest filers’ combined total.
The United States leads with 16 patent records, followed by Europe (EPO) with 11. China and India each carry 4 records, and WIPO PCT filings stand at 4, indicating limited systematic pursuit of broad international protection.
The field is assessed as being in a decline stage, with annual filings easing back from a peak in 2019. The most recent years (2023–2026) show very low reported counts, though these figures are subject to publication lag and should be treated as provisional.
Power cable installation (H02G) and grid integration (H02J) each carry only 5 patent records, and ship auxiliaries (B63J) carries 9. These are adjacent to the dominant platform and wind-motor classes, and sparse coverage in power-export and grid-connection sub-systems could be relevant for engineers working on commercialization of marine wind platforms.
Energie Propre Prodigy Ltee Prodigy Clean Energy Ltd is flagged as a new entrant with recent filing activity and a distinctive focus on nuclear-marine energy integration (G21D1) alongside vessel and hydraulic engineering classes, distinguishing it from pure-wind rivals.
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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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