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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/wave-energy-wave-energy-mooring-systems-patent-landscape-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Wave Energy Mooring SystemsWave Energy Mooring Systems Patents: Who Holds the Claims and Where the Field Is Still Open
A patent landscape analysis of wave energy mooring systems: filing trends since 2015, the concentration of ownership among leading assignees, core technology classes, and the most-cited prior art shaping freedom to opera
595
Published Records
23%
Top-5 Share of All Records
+100%
Filing Growth 2021→2024
US
Leading Jurisdiction
Filing growth = 2021 (7 records) → 2024 (14); 2024 is the last year we treat as complete. Top-5 share = the 5 largest assignees ÷ all 595 records in scope (CR5), not the ranked leaders only.
Published byPatsnap Research··6 min readSourced from Patsnap Eureka
Field Overview
What the wave energy mooring systems patent record shows
Wave energy mooring systems sit at the mechanical foundation of every floating wave energy converter: the mooring has to hold a device in position against cyclical, multi-directional loads without damping the very motion the converter is trying to harvest. 595 records fall within scope of this search, spanning filings from 2015 through the current data cut-off. The record set skews toward mooring as an integrated subsystem of a power take-off design rather than mooring hardware filed on its own, which shows up clearly in the technology composition below.
Ownership is concentrated at the top but the tail is long: the leading assignee holds a meaningfully larger share than the next several combined, yet the ranking runs to 100 distinct companies, most of them holding only a handful of families. That pattern is typical of a subsystem technology inside a still-maturing energy category — early movers stake out core mechanisms, and a wide field of device developers each patent the mooring variant specific to their own hull or float geometry.
Filing activity and technology composition, 2015 to present
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Wave Energy: Wave Energy Mooring Systems Patent Landscape 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
The Data
Filing trends and technology composition
Two views of the same 595 records: how filing activity has moved year over year, and which technology classes the claims actually sit in.
Filing trend, 2017-2026
Annual filings ran from 15 records in 2017 to a peak of 25 in 2020, then eased before rebuilding: 2021 to 2024 shows filings roughly doubling, from 7 to 14 records, a complete three-year span. 2025 and 2026 figures are still filling in given the typical 18-month lag between filing and publication, so the apparent tail-off in the most recent years should not be read as a slowdown.
Publication lags filing by roughly 18 months, so 2025 onwards are still filling in. Growth rates on this page therefore end at 2024; running them to the last bar would understate the field.
Technology composition by IPC subclass
Hydraulic machines and engines (F03B) appear in 73.3% of the 595 records in scope, confirming that mooring claims are overwhelmingly filed as part of, or dependent on, the wave-to-power conversion mechanism. Ships and marine vessels (B63B) at 26.9% and hydraulic/waterway engineering (E02B) at 16.8% cover hull integration and seabed/shoreline anchoring respectively, while smaller shares in wind motors, foundations, motor control and drilling classes point to cross-over from adjacent offshore energy hardware.
Shares are the percentage of the 595 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: Wave Energy Mooring Systems Patent Landscape 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 most-cited prior art and a representative recent filing
Representative Recent Filing
US11795905B1 — Ocean wave energy absorbing panel (Poseidon's Kite, LLC, 2023-10-24)
POSEIDON'S KITE, LLC
The claimed system captures kinetic energy from an ocean wave as a force applied to a flexible membrane that drives a wave energy panel (WEP) back and forth in a reciprocating motion. Panel dimensions are selected to maximise extracted energy while minimising added mass. The membrane is supported on two opposite edges by structural members pivoting about a base, and the reciprocating shape response to alternating horizontal wave orbital velocities transmits force through those structural members to a power take-off.Abstract condensed from the original filing for length.
Most-cited records in the dataset
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US4781023A | Wave driven power generation system | 226 |
| 2 | US5558467A | Deep water offshore apparatus | 123 |
| 3 | US20070018458A1 | Method and apparatus for wave energy conversion using a floating pulley and counterweight | 82 |
| 4 | US6857266B2 | Wave energy converter | 79 |
| 5 | US20110012358A1 | Wave energy conversion device | 75 |
| 6 | US20110304144A1 | Method and apparatus for converting ocean wave energy into electricity | 74 |
| 7 | US20080093858A1 | Method and apparatus for converting ocean wave energy into electricity | 70 |
| 8 | US20110057448A1 | Wave energy converters | 69 |
| 9 | US20100320759A1 | Method and apparatus for ocean energy conversion, storage and transportation to shore-based distribution cent… | 66 |
| 10 | US7453165B2 | Method and apparatus for converting ocean wave energy into electricity | 64 |
Citation counts reflect influence inside the searched corpus and favour older filings; they are not a measure of a patent's current commercial relevance.
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: Wave Energy Mooring Systems Patent Landscape 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 numbers mean for a filing decision
Three findings that should change how a new entrant scopes a mooring claim, drawn directly from the dataset rather than from general industry commentary.
Concentration
22.7%
of all 595 records held by the top 5 assignees
The top of the field is concentrated, the rest is fragmented
The leading assignee alone holds 33 records, and the top 5 combined account for 22.7% of the 595 records in scope. Below that, the ranking runs to 100 companies, most holding only one or two families — a pattern typical of a subsystem technology where device developers each patent their own mooring variant rather than compete for the same core mechanism.
Top 5 combined: 135 records, 22.7% of 595.
Growth
+100%
filing growth, 2021 to 2024
Activity is rebuilding, not fading
Filings peaked at 25 in 2020, eased, then doubled from 7 in 2021 to 14 in 2024 — a complete, comparable three-year span. Because publication lags filing by around 18 months, the lower counts shown for 2025 and 2026 understate real activity and should not be read as a decline.
2021: 7 records → 2024: 14 records.
Claim Density
73.3%
of records classified under F03B (hydraulic machines & engines)
Mooring is claimed as part of the power take-off, not on its own
Nearly three-quarters of the 595 records sit in F03B, the hydraulic machinery class, versus 26.9% in marine vessel structures and 16.8% in waterway engineering. A mooring-only claim with no linkage to the conversion mechanism is the less-crowded — and less precedented — path.
F03B 436 records; B63B 160; E02B 100 (of 595).
Receiving Offices
140
filings routed through the United States
Filing strategy still centres on the US and PCT routes
The United States leads receiving offices with 140 filings, followed by the EPO at 81 and the WIPO/PCT route at 78, with Australia, the UK and Canada each in the 40-50 range. That spread suggests most serious mooring system programmes are pursuing multi-jurisdiction protection rather than filing domestically only.
US 140; EPO 81; PCT 78; Australia 51; UK 42; Canada 41.
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Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Wave Energy: Wave Energy Mooring Systems Patent Landscape 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
What's Next
Where to take this analysis
The dataset points to specific next steps depending on whether you are scoping a new filing, assessing freedom to operate, or tracking a competitor.
Map your own mooring concept against the ranked assignees
Check whether your mechanism or float-mooring interface overlaps with the top-holding companies' declared families before drafting claims, rather than after.
Explore the assignee rankingStress-test novelty against the most-cited prior art
The five most-cited records anchor decades of citing activity in this field; any new independent claim should be checked against their scope directly.
Review the most-cited patentsRun a freedom-to-operate pass with Patsnap Eureka
Use Eureka to pull full claim text for the leading assignees' mooring families and identify which limitations are load-path specific versus generic anchoring language.
Open Patsnap EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Wave Energy: Wave Energy Mooring Systems Patent Landscape 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
The dataset's assignee ranking shows a single leading company holding 33 of the 595 records in scope, well ahead of the next several assignees. The top 5 combined account for 22.7% of all records, but the ranking extends to 100 companies, most holding only a handful of families each. That means the field has a clear leader but no single dominant patent estate — a new entrant is unlikely to be blocked by one company across the board.
Filings peaked at 25 records in 2020, dipped, then rebuilt: the complete, comparable span from 2021 to 2024 shows filings doubling from 7 to 14 records. Because patent publication typically lags the actual filing date by about 18 months, the lower counts recorded for 2025 and 2026 reflect that lag rather than a genuine slowdown. Read the 2021-2024 doubling as the more reliable growth signal.
Most records sit in F03B, hydraulic machines and engines, which covers 73.3% of the 595 records in scope — a sign that mooring claims are usually drafted as part of the power take-off mechanism rather than as standalone anchoring hardware. Marine vessel structures (B63B) appear in 26.9% of records and hydraulic/waterway engineering (E02B) in 16.8%, covering hull integration and seabed anchoring respectively. Smaller shares in wind motor, foundation and motor-control classes reflect cross-over filings from adjacent offshore energy hardware.
US11795905B1, assigned to Poseidon's Kite, LLC and issued in October 2023, claims an ocean wave energy panel system where a flexible membrane, supported by pivoting structural members, reciprocates in response to wave orbital velocities and transmits that motion to a power take-off. Its claims are specific to that membrane-and-pivot mechanism and the panel dimensioning approach described in the abstract, not to mooring or anchoring broadly. Anyone working on a different mechanical linkage — rigid float, tethered buoy, or seabed-fixed arm — would need a claim-by-claim comparison rather than assuming blanket coverage.
The United States leads with 140 filings, ahead of the European Patent Office at 81 and the WIPO/PCT route at 78. Australia, the United Kingdom and Canada each fall in the 40-50 range. The spread across five or six major offices, rather than concentration in one, indicates that companies active in this space are generally pursuing multi-jurisdiction protection rather than relying on a single home filing.
Answers are grounded in the same dataset. Derived from a Patsnap search on Wave Energy: Wave Energy Mooring Systems Patent Landscape 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.