https://www.patsnap.com/resources/blog/rd-blog/floating-offshore-wind-patent-landscape-patent-landscape/ · Patsnap · data cut-off 2026-08-31 · downloaded from the live page
Patent Landscape · Floating Offshore Wind
Floating Offshore Wind Patents: Who Leads and Where Filing Is Headed
  • 29.5% concentration. The top 5 assignees hold 693 of 2,346 records in scope — a real lead, not a fragmented field.
  • Filing has cooled from its 2022 peak. After 253 records in 2022, filings ran 220 in 2021 to 172 in 2024, a -22% move over that span, before the most recent partial years understate the true rate.
  • Marine engineering classes sit alongside turbine control. B63B ships & marine vessels appears on 40.3% of records, second only to F03D wind motors at 69.5%, showing hull and mooring claims are as contested as control claims.
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2,346
Published Records
30%
Top-5 Share of All Records
-22%
Filing Growth 2021→2024
US
Leading Jurisdiction

Filing growth compares 2021 (220 records) with 2024 (172) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 2,346 records in scope (CR5), not by the ranked leaders only.

Published byPatsnap Research··8 min readSourced from Patsnap Eureka
Overview

What the floating offshore wind patent record actually shows

Floating offshore wind sits at the intersection of two mature engineering disciplines: wind turbine control and marine structural design. The search set behind this page — 2,346 published records filed between 2015 and the current data cut-off — captures both halves, from blade pitch and rotor torque control down to hull stabilisation and mooring line arrangement. That dual character shows up directly in the technology composition: F03D (wind motors) and B63B (ships and marine vessels) are the two largest IPC subclasses by a wide margin over everything else.

Filing activity rose steadily through the late 2010s, peaked in 2022, and has since eased from that high — a pattern consistent with an industry that moved from demonstration projects toward pre-commercial arrays and is now digesting a first wave of core claims. Because publication trails filing by roughly 18 months, the most recent one or two years in any chart will always look thinner than they eventually turn out to be; the reliable read on direction stops at 2024.

Filing activity and technology mix, 2015 to present
  1. 1SIEMENS GAMESA RENEWABLE ENERGY AS210
  2. 2VIASAT INC174
  3. 3PRINCIPLE POWER INC117
  4. 4HYWIND AS111
  5. 5EQUINOR ENERGY AS81
  6. 6VESTAS WIND SYSTEMS AS70
  7. 7HITACHI LTD52
  8. 8AKER SOLUTIONS AS39
  9. 9MHI VESTAS OFFSHORE WIND AS33
  10. 10UNIVERSITY OF MAINE33
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
The Data

Filing trend and technology composition

Two views of the same 2,346-record set: how filing volume has moved year over year, and which IPC subclasses carry the claim density.

A 2022 peak followed by a cooling, not a collapse

Filings climbed from 143 in 2017 to a peak of 253 in 2022, then eased to 172 by 2024 (-22% from 2021's 220) — a genuine pullback from the peak, but 2025 and 2026 figures are still filling in under the usual publication lag and should not be read as the field slowing further.

A 2022 peak followed by a cooling, not a collapse075150225300143201720182019202020212532022202320242025152026Most recent year is partial — publication lag means later filings are not yet visible.

Turbine control and marine engineering dominate; wireless and antenna claims are a distinct minority

F03D (wind motors) touches 69.5% of the 2,346 records and B63B (marine vessels) 40.3%, confirming floating wind patents are as much about platform engineering as about turbine control; F03B, H04B, H04W, E02B, H01Q and H02G each cover a single-digit-to-low-teens share, marking narrower but still active fronts in hydraulics, communications and cabling.

Turbine control and marine engineering dominate; wireless and antenna claims are a distinct minorityF03D · Wind motors (wind turbines)1,63069.5%B63B · Ships & marine vessels94640.3%F03B · Hydraulic machines & engines2139.1%H04B · Transmission (general)1687.2%H04W · Wireless communication networks974.1%E02B · Hydraulic & waterway engineeri…883.8%H01Q · Antennas743.2%H02G · Installing power & signal cabl…582.5%Other64727.6%

Shares are the percentage of the 2,346 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 Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.

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Key Patents

The most-cited records anchor mooring and platform design

Representative Recent Filing
US12331723B22025-06-17

Floating wind turbine control below rated wind speed

EQUINOR ENERGY AS

A motion controller for a floating wind turbine including a number of rotor blades is provided. The motion controller is arranged to adjust the blade pitch of each rotor blade when the floating wind turbine is operating in winds below the rated wind speed so as to create a net force that damps a surge motion of the floating wind turbine. Also provided is a method of damping the motion of a floating wind turbine and a wind turbine having such a motion controller.Filed by Equinor Energy AS, published 2025-06-17 as US12331723B2 — illustrates how control claims now target platform motion damping rather than turbine output alone.

US12331723B2 — patent drawing 1US12331723B2 — patent drawing 2
View full record
Highest-cited records in the floating offshore wind set
#Publication no.Patent titleCitations
1US20110037264A1Column-stabilized offshore platform with water-entrapment plates and asymmetric mooring system for support of…228
2WO2009131826A2Column-stabilized offshore platform with water-entrapment plates and asymmetric mooring system for support of…202
3US20180041270A1Beamformer for end-to-end beamforming communications system136
4US20110074155A1Floating offshore wind farm, a floating offshore wind turbine and a method for positioning a floating offshor…115
5US8471396B2Column-stabilized offshore platform with water-entrapment plates and asymmetric mooring system for support of…115
6WO2020167137A1Wind energy power plant and method of construction103
7US20100219645A1Power generation assemblies and apparatus100
8WO2017124004A1Techniques for employing access node clusters in end-to-end beamforming98
9US7293960B2Power generation assemblies, and apparatus for use therewith95
10US20110148115A1Deep offshore floating wind turbine and method of deep offshore floating wind turbine assembly, transportatio…89

Citation counts reward older, foundational filings and should be read as a signal of influence on the field, not of 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 Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Insights

What the numbers mean for a filing decision

Three findings that should shape where a new application gets drafted and where it competes with dense prior art.

Concentration
29.5%
of 2,346 records held by top 5

The leader board is real, not diffuse

The top 5 assignees hold 693 of the 2,346 records in scope, and the top 10 extend that to 39.2% (920 records). That is a genuine lead position rather than a crowded field of equals, meaning a new entrant is filing against a small number of well-established portfolios rather than hundreds of scattered competitors.

Based on the 100-company ranked assignee list.
Filing trend
-22%
2021 to 2024 (220 to 172 records)

Volume has pulled back from its 2022 peak

After climbing from 143 records in 2017 to a peak of 253 in 2022, filing volume fell to 172 by 2024. That is a real pullback in a technology that had a sharp run-up, though it says nothing about whether the pullback continues — 2025 and 2026 figures are still incomplete under the normal publication lag.

2024 is the most recent year treated as complete.
Technology mix
40.3%
of records also carry B63B (marine vessels)

Hull and mooring claims rival turbine-control claims

F03D wind-motor claims appear on 69.5% of records, but B63B marine-vessel claims are close behind on 40.3% — far ahead of the next largest class. A drafting strategy that only reads turbine control art and ignores marine hull and mooring prior art is reading half the relevant field.

Shares are of the same 2,346-record base and overlap, since records can carry multiple classes.
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Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to floating offshore wind patent landscape, with the prior art for and against each one.

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Co-filing is rare and concentrated
AssigneeCo-assigneeShared families
Hitachi, Ltd.Toda Corporation18
Hitachi, Ltd.Kyoto University18
Hywind ASSKAARE BJRN4
University of MaineAlliance for Sustainable Energy, LLC3
Principle Power IncRODDIER DOMINIQUE2
Principle Power IncCERMELLI CHRISTIAN2
Hywind ASNIELSEN FINN GUNNAR2
Hywind ASJACKSON ROBERT PATRICK2

Only 9 co-assignee pairs appear across the set, with the strongest pairings linked to Hitachi's joint filings with Toda Corporation and Kyoto University — evidence that most floating wind IP is developed and held by a single assignee rather than through joint ventures.

Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players

Who is filing, and where the field is still open

The ranked leaders combine established offshore wind OEMs, platform-technology specialists and energy majors; momentum in the most recent year has cooled across nearly all of them, consistent with the broader publication lag rather than a genuine stop in R&D.

Leader
210
records

A clear top position

The leading assignee holds 210 records, well ahead of fifth place at 81 and tenth place at 33 — a steep drop-off that marks a genuine leader rather than a cluster of near-equals at the top.

Counted in the same 2,346-record base.
Mid-field
33
records at tenth place

A meaningful second tier

Between fifth place (81 records) and tenth place (33 records) sits a group of assignees with sustained but smaller portfolios, spanning turbine OEMs, platform designers and research institutions rather than a single dominant type of player.

Based on the 100-company ranked list.
Momentum
0
records in the latest year for several top filers

Recent-year counts have gone quiet across the board

Several of the largest historical filers show zero records in the latest year and -100% year-on-year, but this tracks the roughly 18-month publication lag rather than a real halt — recent filings from these assignees are most likely still working through the pipeline.

Read alongside the 2024 filing figures, the last complete year.
🔍
Under-claimed sub-areas worth a closer look
Branches with comparatively thin coverage relative to the core turbine-control and hull-design claims
Wireless condition monitoring for floating arraysAntenna integration on floating substructuresDynamic power cable routing for floating platformsWaterway and seabed anchoring engineeringHydraulic pitch actuation under platform motion
Rank all filers by momentum →
Filing momentum by assignee, most recent complete years
AssigneeRecent yearYoY
Siemens Gamesa Renewable Energy0-100%
Viasat Inc0-100%
Principle Power Inc0-100%
Equinor Energy AS0
Hywind AS0
Vestas Wind Systems AS0
MHI Vestas Offshore Wind AS0
Aker Solutions AS0-100%
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next

Where to take this from here

The dataset points to a field with an established leadership tier and a technology mix split between turbine control and marine engineering. The next step is testing a specific claim or filing strategy against that backdrop.

Check freedom-to-operate against the top holders

With 29.5% of records held by five assignees and platform-stabilisation art running back over a decade, a freedom-to-operate check against the highest-cited mooring and platform patents should come before drafting new control claims.

Run a freedom-to-operate search

Map the marine-engineering half of the field

B63B marine-vessel claims cover 40.3% of records — nearly as much as turbine control — so a technology map that treats floating wind as only a turbine-control problem will miss a large share of the relevant prior art.

Build a full technology map

Watch for the 2025-2026 filing catch-up

Recent-year counts look low across nearly every leading assignee purely because of publication lag; revisit the trend in six to twelve months before drawing conclusions about slowing R&D.

Track filing activity over time
Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ

Common questions on the floating offshore wind patent landscape

Answers are grounded in the same dataset. Derived from a Patsnap search on Floating Offshore Wind Patent Landscape covering 2015–2026, data cut-off 2026-08-31. 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.