Vertical-Axis Wind Turbine for Desalination Plants Patent Landscape
Vertical-Axis Wind Turbine for Desalination Plants Patent Landscape in 2026
This is a small but concentrated niche: 54 patent families in scope, with a single consultancy holding the largest block of records and the top five filers together accounting for half of the hundred largest filers’ combined output. The field is still expanding on a multi-year basis, though annual volume has eased from its 2023 peak, and the dominant filing office is the United States.
J Hench Consulting leads a highly concentrated field
J Hench Consulting Inc holds the top position with 19 patent records, well ahead of the second-ranked Floating Windfarms Corp at 11 and the cluster of mid-tier filers at 7 and 6 records respectively.
The top five filers account for 50% of the hundred largest filers’ combined total, signalling a sharply tiered structure in which a handful of specialist entities dominate and the long tail of individual inventors and small firms holds limited defensive depth.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | J Hench Consulting Inc | 19 | |
| 2 | Floating Windfarms Corp | 11 | |
| 3 | Edward Von Bargen | 7 | |
| 4 | Mighty Waves Energy | 7 | |
| 5 | C.E.P.A. Euro Company Programs Africa | 6 | |
| 6 | SEADOV | 5 | |
| 7 | Qufu Normal University | 4 | |
| 8 | Edward Von Bargen | 3 | |
| 9 | René Jozef Timmerman | 2 | |
| 10 | Andervision | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | John Andrew MacDonald | 2 | |
| 12 | Steven C. Hench | 2 | |
| 13 | John MacDonald | 2 | |
| 14 | Kuo Yuan Lynn | 2 | |
| 15 | Equinor Energy AS | 2 | |
| 16 | King Fahd University of Petroleum and Minerals | 2 | |
| 17 | Yvon Erwin Nicolas Timmerman | 2 | |
| 18 | Paulo Alexandre Teixeira e Silva Cardoso | 2 | |
| 19 | Michael Pao Yih Ho | 2 | |
| 20 | Hohai University | 1 |
The leader’s position is built primarily on vertical-axis wind turbine mechanics and power-take-off integration (F03D 3 and F03D 9), giving it broad coverage of the core turbine subsystem and leaving challengers to differentiate on marine structures, hydraulic coupling, or water-treatment integration.
Filing counts for 2024–2026 are understated due to standard patent-publication lag; the apparent softening in those years does not necessarily reflect a real deceleration. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year growth with an offshore-marine technology mix
Annual filing activity and the IPC branch breakdown together reveal a field that has grown on a multi-year basis while remaining anchored in wind-motor mechanics, with secondary coverage in marine structures and hydraulic engineering.
Annual filing trend
Filings rose from 10 records in 2017, dipped sharply in 2018 and dropped to zero in 2020, then recovered strongly through 2021–2023 to reach a corpus peak of 11 records in 2023. Counts for 2024–2026 are subject to publication lag and should be treated as provisional floor figures rather than a signal of sustained decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
F03D (Wind motors) is the dominant branch by a wide margin, consistent with a corpus centred on turbine design. F03B (Hydraulic machines and engines) is the largest secondary branch, reflecting offshore wave-energy integration strategies. B63B (Ships and marine vessels) ranks third, underscoring the prevalence of floating or marine-mounted concepts. Desalination-specific branches — C02F (Water and wastewater treatment) and B01D (Separation/filtration) — together account for a small fraction of records, indicating that most patents claim the energy-generation stage rather than the water-treatment stage.
↗ 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.
Portable and autonomous desalination system
The portable and autonomous desalination system is an autonomous reverse osmosis (RO) desalination system utilizing power from a combination of electricity generation and storage sources that include a photovoltaic (PV) unit, a vertical-axis wind turbine (VAWT) unit, and an electricity storage unit. Electric power from PV, VAWT or storage units or a… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Apparatus for harvesting energy and other necessit… | 84 |
| 2 | Offshore wind turbine and associated systems and m… | 54 |
| 3 | Offshore Vertical-Axis Wind Turbine and Associated… | 53 |
| 4 | Vertical axis wind turbine | 46 |
| 5 | Offshore vertical-axis wind turbine and associated… | 37 |
| 6 | windmill | 33 |
| 7 | Portable and autonomous desalination system | 33 |
| 8 | Portable and autonomous desalination system | 30 |
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 competitive structure means for R&D investment
Four lenses — maturity, concentration, collaboration, and geography — frame the strategic context for engineers and investors evaluating entry or expansion in this niche.
Growth stage, easing from 2023 peak
The lifecycle evidence places this field in the Growth stage: the recent three-year filing window sits 31% above the prior three-year window. Annual volume peaked in 2023 and has eased since, though publication lag inflates that apparent softening. The field is still expanding on a multi-year basis, and foundational claim space in turbine mechanics is not yet saturated.
Growth · 31% recent window gainTop-heavy, with shallow challenger depth
With the top five filers holding 50% of the hundred largest filers’ combined records, this is an unusually concentrated niche for a technology in growth phase. The leader, J Hench Consulting Inc, holds almost twice the records of its nearest rival. New entrants face a clear incumbent in core turbine design but encounter a much more open field in desalination integration and structural engineering sub-areas.
High concentration · top-5 = 50%No co-applicant activity detected
The collaboration evidence returns no co-filing pairs in the corpus, which is consistent with a landscape dominated by individual inventors, small consultancies, and single-entity firms. The absence of cross-institutional joint filings suggests that academic–industry partnerships — common in adjacent renewable-energy fields — have not yet materialised here. This may represent both a gap and an opportunity for consortia-based filing strategies.
No co-filings detectedUS-centric, with PCT and EPO as secondary routes
The United States is the lead filing office with 38 patent records, followed by WIPO PCT at 20 and the European Patent Office at 15. India, Australia, China, and the United Kingdom each host a small cluster of records. The geographic spread suggests that leading applicants are pursuing international protection via PCT but have not yet built dense national-phase portfolios outside the US and Europe.
US dominant · PCT + EPO secondaryGo 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.
Hench entities lead on turbine mechanics; challengers diversify into marine and hydraulic routes
The top filers split into two recognisable clusters: Hench-affiliated entities focused narrowly on vertical-axis turbine design and power integration, and a second group — Floating Windfarms Corp and Mighty Waves Energy — pursuing floating marine-platform architectures.
J Hench Consulting Inc
J Hench Consulting Inc leads with 19 patent records, concentrated in F03D 3 (VAWT rotor design) and F03D 9 (wind-motor power integration). The related entity Steven C Hench adds a further 2 records with matching technology focus, and HENCH STEVEN C is flagged as a new entrant in the most recent filing window with 2 recent records. Together the Hench cluster holds the broadest single-assignee coverage of core turbine subsystems in this corpus.
patent records: 19Floating Windfarms Corp
Floating Windfarms Corp ranks second with 11 patent records, focused on F03D 3 (rotor design), F03D 11 (turbine ancillary systems), and F03D 9 (power integration), with secondary coverage in marine-vessel structures (B63B). Mighty Waves Energy presents a complementary challenger profile at 7 patent records, emphasising floating marine-platform design (B63B 35) and offshore installation (F03D 13); it is also flagged as a new entrant with 6 recent records, making it the most active new participant in the corpus.
patent records: 11| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Steven C. Hench | 2 | ▲ new entrant |
| Edward Von Bargen | 2 | ▲ new entrant |
| Mighty Waves Energy | 6 | ▲ new entrant |
| J Hench Consulting Inc | 6 | ▲ new entrant |
Under-served branches in water treatment, generator design, and marine foundations
Several IPC branches appear in the corpus at low share relative to the dominant F03D cluster, pointing to areas where patent density is thin and technical problems remain partially unaddressed.
C02F · Water and wastewater treatment integration
With only 9 patent records and a 5% share of the corpus, the desalination-process side of this technology — reverse osmosis coupling, brine management, membrane-pressure matching — is sparsely covered relative to the turbine hardware itself. Qufu Normal University is the only academic filer active in this branch (C02F 1 and C02F 103), suggesting that the engineering interface between VAWT power output and desalination process control is an under-served area with plausible technical value for organisations with water-treatment competencies seeking to claim the system-integration layer.
Search this in Eureka →E02B / E02D · Hydraulic waterway engineering and foundations
E02B (Hydraulic and waterway engineering) and E02D (Foundations and earth drilling) each hold 4 and 3 patent records respectively, together representing only about 4% of corpus records. For offshore and coastal desalination deployments, foundation design — mooring systems, seabed anchoring, and tidal-current interaction — is a critical engineering challenge. The thin coverage here, alongside the corpus’s strong bias toward floating marine platforms, suggests that structural and geotechnical integration work is an adjacent branch where entry would complement, rather than collide with, the dominant turbine-design portfolio.
Search this in Eureka →How leading filers differ by technology route
Strength of each leader across the main technology routes.
| Player | F03D 3 · Wind motors (wind turbines) | F03D 9 · Wind motors (wind turbines) | F03B 13 · Hydraulic machines & engines | B63B 35 · Ships & marine vessels | F03B 17 · Hydraulic machines & engines |
|---|---|---|---|---|---|
| Steven C. Hench | Strong · 13 | Strong · 13 | Absent | Absent | Absent |
| J Hench Consulting Inc | Strong · 7 | Strong · 7 | Absent | Absent | Absent |
| Edward Von Bargen | Absent | Absent | Strong · 6 | Absent | Strong · 5 |
| Floating Windfarms Corp | Strong · 9 | Absent | Absent | Emerging · 1 | Absent |
| SEADOV | Absent | Strong · 4 | Strong · 5 | Absent | Absent |
| Qufu Normal University | Strong · 4 | Strong · 4 | Absent | Absent | Absent |
| Mighty Waves Energy | Absent | Absent | Absent | Strong · 7 | Absent |
Frequently asked questions
The evidence covers 54 patent families in scope globally. This is a small, specialist niche rather than a high-volume technology area, which means individual filings carry above-average strategic weight.
J Hench Consulting Inc leads with 19 patent records, focused on vertical-axis rotor design and power-integration subsystems (F03D 3 and F03D 9). The related entity Steven C Hench adds further records in the same technical area.
The field is in a Growth lifecycle stage: the recent three-year filing window is 31% above the prior three-year window. Annual volume peaked in 2023 at 11 records and has appeared to ease since, but counts for 2024–2026 are understated by publication lag and should not be read as a confirmed decline.
The United States is the leading filing jurisdiction with 38 patent records. WIPO PCT filings account for 20 records and the European Patent Office for 15, indicating that leading applicants are actively pursuing international protection. India, Australia, China, and the United Kingdom each have smaller clusters of records.
No co-applicant filing pairs are detected in the evidence. The corpus is dominated by individual inventors, small consultancies, and single-entity firms acting independently, which distinguishes this niche from larger renewable-energy fields where academic–industry consortia are common.
The most under-served adjacent branches are C02F (Water and wastewater treatment), with 9 patent records and 5% corpus share, and the combined E02B/E02D structural-engineering cluster, with 7 records combined. Both are technically relevant to deployable desalination systems but remain sparsely claimed relative to the dominant turbine-hardware branches.
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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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