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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/wave-energy-converter-scale-up-and-mass-production-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Marine & Offshore · Patent LandscapeWave Energy Converter Scale-Up: Who's Filing and Where the Gaps Sit
- Filing peaked in 2021 at 21 records and has not recovered, with the 2022 midpoint already down to 17 and the latest partial year at just 5.
- Marine-vessel and hydraulic-machine classes dominate the claim space, with B63B at 51 records and F03B at 41, while naval vessel classification B63G trails at only 10.
- Collaborative filing is almost nonexistent, with just two co-assignee pairs identified across all 104 patent families in this corpus.
104
Published Records
-52%
3-Yr Growth (lag-adjusted)
AU
Leading Jurisdiction
6
Active Filers Ranked
Published byPatsnap Research··8 min readSourced from Patsnap Eureka
Overview
What this landscape covers
This landscape tracks patent families addressing wave energy converter array deployment, serial device manufacturing, and modular converter production — the scale-up problem that sits between a working prototype and a fleet of devices installed offshore. The corpus spans 104 patent families published between 2015 and the 2026 data cut-off, drawn from filings that combine wave-energy or ocean-wave-device language with array-, serial-, or modular-production claim language.
Coverage runs across eight IPC subclasses, from marine vessel hulls (B63B) and hydraulic machinery (F03B) through to electric generators (H02K) and onboard chemical processes such as electrolysis (C25B) and water treatment (C02F). That spread reflects how a wave energy converter scale-up claim often has to address the hull, the power take-off, and whatever process the converter is powering, all in the same filing.
Filing volume and technology composition, 2015-2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Filing Data
Filing trends and technology composition
Filings in this dataset run from 2015 through the 2026 cut-off, with volume concentrated in a narrow band of years rather than a steady climb. The technology composition spans eight IPC subclasses, reflecting how wave energy converters pull together marine hull engineering, hydraulic and electric power take-off, and downstream processes like electrolysis or water treatment.
A single peak year, not sustained growth
Filing activity rose from zero in 2017 to a peak of 21 records in 2021, then flattened: the 2022 midpoint sits at 17, and the most recent partial year shows only 5. Because publication lags filing by roughly 18 months, the last one to two years will always look thinner than they eventually turn out to be, but the 2021 peak followed by a flat-to-declining trend suggests filing activity has not returned to its prior high.
Marine hulls and hydraulic machinery dominate the classification mix
B63B (ships and marine vessels) leads with 51 records, followed by F03B (hydraulic machines) at 41 and F04D (non-positive-displacement pumps) at 33. Electrolytic production (C25B, 31) and water treatment (C02F, 26) appear at meaningful volume, showing that a share of this corpus treats the converter as a platform for an onboard process rather than purely a power-export device. Electric motors and generators (H02K, 16) and naval/offensive vessel classifications (B63G, 10) are the thinnest categories.
Shares are the percentage of the 104 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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The records shaping current claim scope
Most Recent Grant
EP4061700B1 — Self-charging autonomous submersible vessel
LONE GULL HOLDINGS, LTD
Granted to Lone Gull Holdings, Ltd on 2026-06-03, this record covers a self-charging autonomous submersible vessel, an architecture distinct from the surface and moored converter designs that dominate the rest of the corpus. It is the most recent grant identified in this dataset.Original filing title rendered in German as "Selbstaufladendes autonomes Tauchboot."
Most-cited records in this corpus
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20200056578A1 | Inertial hydrodynamic pump and wave engine | 107 |
| 2 | US20130009402A1 | Wave-energy converter | 31 |
| 3 | US10605226B2 | Inertial hydrodynamic pump and wave engine | 27 |
| 4 | US20230078347A1 | Inertial hydrodynamic pump and wave engine | 25 |
| 5 | WO2021102396A1 | Self-charging autonomous submersible vessel | 20 |
| 6 | US11118559B2 | Inertial hydrodynamic pump and wave engine | 17 |
| 7 | US11384727B2 | Inertial hydrodynamic pump and wave engine | 16 |
| 8 | US11891975B2 | Inertial hydrodynamic pump and wave engine | 15 |
| 9 | US11680554B2 | Inertial hydrodynamic pump and wave engine | 15 |
| 10 | US11635057B2 | Inertial hydrodynamic pump and wave engine | 15 |
Ranked by citation count within the searched corpus; older filings accumulate citations simply by being available longer, so treat this as a map of influence rather than a ranking of current importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the filing pattern signals
Reading citation counts and filing momentum together separates which mechanical routes are actually contested from which ones simply carry a lot of documents.
Citation concentration
107 cites
top-cited record
One mechanical principle draws most of the follow-on filing
US20200056578A1 leads the corpus at 107 citations, and the same inertial hydrodynamic pump and wave engine concept reappears across two further publications (US10605226B2, US20230078347A1). That repeat pattern under one lineage is a stronger signal of contested claim space than raw filing volume alone.
Citations favour older filings — treat this as historic influence, not current activity.
Filing momentum
21 → 5
peak year to latest year
Activity has cooled since the 2021 peak
Filings climbed from zero in 2017 to 21 in 2021, then fell through a 2022 midpoint of 17 down to 5 in the latest partial year. Publication lag means the final year or two always undercounts, but the multi-year decline from peak predates that effect.
Most recent year is partial; expect upward revision as later publications land.
Jurisdiction spread
AU 21, US 20
leading receiving offices
Filing is spread across several receiving offices, none dominant
Australia (21) and the United States (20) lead receiving-office counts, with Chile (17), the EPO (8), New Zealand (8) and the Philippines (6) all carrying meaningful volume. No single office accounts for a majority of filings, suggesting applicants are pursuing protection across multiple coastal jurisdictions rather than concentrating on one home market.
Receiving-office counts reflect where applications were filed, not where a device is deployed.
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Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to wave energy converter scale-up and mass production, with the prior art for and against each one.
Collaboration is the exception, not the rule
| Assignee | Co-assignee | Shared families |
|---|---|---|
| RESOLUTE MARINE ENERGY INC | WILLIAMS ARTHUR R | 2 |
| TECHNOLOGY INNOVATION HUB IIT GUWAHATI | PONDICHERRY UNIVERSITY | 1 |
Only two co-assignee pairs appear across 104 families in this dataset — Resolute Marine Energy with Williams Arthur R, and Technology Innovation Hub IIT Guwahati with Pondicherry University. That scarcity points to a field still built on single-filer development rather than joint ventures or shared manufacturing agreements.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Assignees
Who is filing, and how concentrated is the field
With 104 families spread across a long list of assignees and only two co-assignee pairs identified, this is a field of single-filer development rather than one led by a handful of consolidated players. Recent-year momentum is thin across the board, with most active filers logging just one filing in the latest tracked year.
Most recent momentum
3 filings, -50% YoY
latest-year activity
Lone Gull Holdings
The only assignee still filing at more than a single-record pace in the latest year, though volume is down fifty percent from the prior year. Also holds the corpus's most recent grant, EP4061700B1, on a self-charging autonomous submersible vessel.
Latest-year filings: 3, down from the prior year.
Academic collaboration
1 filing each
latest-year activity
IIT Guwahati & Pondicherry University
One of only two co-assignee pairs in the entire dataset, this academic collaboration filed once in the latest tracked year. Its presence signals early-stage research activity rather than commercial-scale claim building.
Co-assignee pair; latest-year filings: 1.
Independent filer
1 filing
latest-year activity
Kurma Renewable Energy Pte Ltd
Filed once in the latest tracked year, consistent with the broader pattern of dispersed, single-filing entrants rather than a concentrated set of repeat applicants.
Latest-year filings: 1.
Historic anchor filer
0 in latest year
latest-year activity
Resolute Marine Energy & Williams Arthur R
The corpus's other co-assignee pair, tied to earlier filing activity rather than the current year. No filings in the latest tracked year suggest this collaboration has gone quiet, at least in this claim area.
Co-assignee pair; latest-year filings: 0.
Recent-year filing momentum by assignee
| Assignee | Recent year | YoY |
|---|---|---|
| Lone Gull Holdings, Ltd | 3 | -50% |
| TECHNOLOGY INNOVATION HUB IIT GUWAHATI | 1 | — |
| PONDICHERRY UNIVERSITY | 1 | — |
| KURMA RENEWABLE ENERGY PTE LTD | 1 | — |
| RESOLUTE MARINE ENERGY INC | 0 | — |
| WILLIAMS ARTHUR R | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Next Steps
Where to take this analysis next
The filing and citation data point to specific follow-up questions rather than a single conclusion. These are the natural next checks for an R&D or IP team acting on this landscape.
Run freedom-to-operate on the inertial-pump lineage
The three-publication family behind US20200056578A1 carries the highest citation count in the corpus and represents the most contested mechanical claim space. Any design using an inertial hydrodynamic pump principle should be checked against this lineage specifically.
Search this family in Eureka →Track Lone Gull Holdings' filing cadence
As the only assignee with more than single-record activity in the latest tracked year, its next filings will indicate whether the 2021 peak is being revisited or whether the field continues to cool.
Monitor this assignee in Eureka →Scope a claim around array-level manufacturing licensing
With only two co-assignee pairs across 104 families, joint development and licensing structures for serial production are almost entirely unclaimed. This is a candidate area for an early, defensible filing.
Draft a claim search in Eureka →Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Frequently asked questions
Filing in this dataset is fragmented rather than concentrated under one dominant holder. Lone Gull Holdings shows the most recent sustained activity, with three filings in the latest tracked year, though that is down fifty percent year-on-year. Most other assignees, including academic collaborators like the IIT Guwahati and Pondicherry University pairing, appear with only one or two filings each, which points to a long tail of single-filing entrants rather than a clear market leader controlling scale-up claim space.
The corpus spans eight IPC subclasses, led by B63B (ships and marine vessels, 51 records) and F03B (hydraulic machines, 41 records). Pump technologies both positive and non-positive displacement (F04B and F04D) also carry significant volume, alongside electrolytic production (C25B) and water treatment (C02F) classes that suggest a portion of filings treat the converter as a platform for an onboard chemical or treatment process rather than pure power export. Electric generator technology (H02K) and naval vessel classifications (B63G) are the smallest categories, indicating comparatively less claim density there.
Filing rose from zero in 2017 to a peak of 21 records in 2021, but has not sustained that level since. The 2022 midpoint dropped to 17, and the most recent year shows only 5 filings so far, though that figure is understated because publication typically lags filing by around 18 months. Taken together, the pattern looks like a filing wave that has already crested rather than a technology still accelerating.
EP4061700B1, titled (in its original German) as a self-charging autonomous submersible vessel, was granted to Lone Gull Holdings, Ltd on 2026-06-03. It sits in the smallest structural niche in this dataset, autonomous submersible platforms, alongside the earlier WO2021102396A1 filing on the same broad concept. Anyone developing a submersible or semi-submersible converter with onboard self-charging and storage should review this claim directly, since it is the most recent grant in the corpus and defines current claim scope in that specific niche.
The clearest gaps sit in the least-filed IPC subclass, B63G (naval vessels), and in the near-absence of collaborative filing, with only two co-assignee pairs across the entire 104-family dataset. Claims combining standardized modular interconnects for onboard payloads, such as electrolysis or treatment systems, across a deployed array of converters are also thin, since most filings address the payload technology in isolation rather than fleet-level serial production. A first mover writing claims around licensed serial-manufacturing processes or array-level modular interfaces would face comparatively little direct prior art.
Answers are grounded in the same dataset. Derived from a Patsnap search on Wave Energy Converter Scale-Up and Mass Production covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.