Vertical-Axis Wind Turbine for Microgrids Patent Landscape
Vertical-Axis Wind Turbine for Microgrids Patent Landscape in 2026
This is a small, concentrated niche: the corpus stands at 39 patent families, co-led by Bluenergy Solarwind Inc and Edward Von Bargen, with India as the dominant filing jurisdiction. Annual volume peaked in 2021 and has eased since, signalling a field in contraction after an early growth phase.
Bluenergy Solarwind and Von Bargen share the lead in a tightly held niche
The vertical-axis wind turbine (VAWT) for microgrids space is dominated by two co-leaders — Bluenergy Solarwind Inc and Von Bargen Edward — each holding the top position in the applicant ranking. The field is narrow enough that individual inventors and small firms occupy nearly every ranked slot.
The top five filers account for 36% of the hundred largest filers’ combined patent records, reflecting moderate-to-high concentration for a corpus of this size. Below the top two, filings drop sharply to single-digit counts, leaving a pronounced tier gap between the leaders and the rest of the field.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Bluenergy Solarwind Inc | 7 | |
| 2 | Edward Von Bargen | 7 | |
| 3 | Differential Dynamics Corp | 4 | |
| 4 | Edward Von Bargen | 3 | |
| 5 | General Electric Company | 2 | |
| 6 | Joel C. Goldblatt and Kaushik Mallick | 2 | |
| 7 | Bharat Petroleum Corporation Limited | 2 | |
| 8 | M. Gowtham | 1 | |
| 9 | Saravana L. Kumar | 1 | |
| 10 | Dr. D. Y. Patil Institute of Technology, Pimpri, Pune | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Dr. S. Vijayaraj | 1 | |
| 12 | Wuxi Bangbaoli Enterprise Management Partnership | 1 | |
| 13 | IIMT Business Incubator Foundation | 1 | |
| 14 | T. Abishek | 1 | |
| 15 | Jaime Miguel Bardia | 1 | |
| 16 | Subodh Kumar Suman | 1 | |
| 17 | D. Praveen | 1 | |
| 18 | Joel C. Goldblatt | 1 | |
| 19 | Jiuyang Xingyuan Technology (Wuxi) Co. Ltd. | 1 | |
| 20 | M. Viwin | 1 |
The leaders’ positions suggest they have established baseline coverage of core VAWT-microgrid configurations; any entrant seeking freedom-to-operate will need to navigate their portfolios, particularly Bluenergy’s hybrid solar-wind designs and Von Bargen’s hydraulic-machine filings.
The most recent filing years are subject to publication lag and likely under-represent current activity; 2025–2026 data should be treated as provisional. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume peaked in 2021; wind-turbine and hybrid-energy classes dominate the mix
The annual trend and technology-composition charts together reveal a field that expanded through 2021 and has since eased, while maintaining a broad multi-technology footprint centred on wind motors and hybrid power systems.
Annual filing trend
Activity built from near-zero in 2017, reached a local peak of 7 records in 2021, then stepped back through 2022–2024. The apparent 2025 spike should be read cautiously given publication lag; the 2026 figure is provisional. The overall multi-year window still shows net positive activity relative to pre-2019 levels, but the trend from the 2021 peak is downward.
↗ Hover for values · click a bar to ask EurekaTechnology composition
F03D (wind motors) anchors the corpus as the dominant class, followed by F03B (hydraulic machines), H02S (photovoltaic/solar), and H02J (power supply and grid systems) — confirming that VAWT-microgrid patents frequently combine wind generation with solar hybrid and grid-integration elements. Downstream control classes H02K, H02P, and G05F appear at lower counts, flagging them as relatively under-explored adjacent branches.
↗ 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.
Dual-hybrid solar and wind-enabled triple-helical …
A hybrid solar/wind turbine apparatus, which includes a blade and shelf assembly configured to provide wind impulsion and wind capture. The blade and shelf assembly are located between an upper and a lower platform assembly. The blade assembly is helically disposed about an axis, for generating torque. A transmission shaft is in communication with the blade… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Dual-Hybrid Solar and Wind-enabled Triple-Helical … | 17 |
| 2 | FFWN clean energy power plant | 9 |
| 3 | Dual-hybrid solar and wind-enabled triple-helical … | 6 |
| 4 | Apparatus that provides energy independence throug… | 5 |
| 5 | SC-MH (The solar cube for micro-grid hub) | 5 |
| 6 | Hybrid solar and helically-shaped, savonius-type s… | 3 |
| 7 | Method and systems for utilizing excess energy gen… | 2 |
| 8 | Method and systems for utilizing excess energy gen… | 2 |
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 decisions
Four structural observations — maturity, concentration, collaboration patterns, and geographic spread — frame where risk and opportunity sit for an engineer evaluating entry or expansion in this space.
Decline stage: annual volume has eased from the 2021 peak
The lifecycle evidence places this field in decline, with annual filings easing back from the 2021 peak and a recent-window growth rate of –38%. This suggests the foundational design space has been mapped by early movers. New entrants would need differentiated positioning — for example, targeting control systems or grid-integration sub-problems not yet densely claimed — rather than replicating core turbine geometry.
Lifecycle: DeclineTwo co-leaders, then a sharp drop to single-patent filers
Bluenergy Solarwind Inc and Von Bargen Edward share the top rank, each with 7 patent records, and Differential Dynamics Corp follows with 4. Below that threshold, nearly every other applicant holds 1–2 records. This steep concentration means the IP landscape is navigable but not open — the two leaders hold disproportionate blocking potential in core design classes.
High concentrationBluenergy Solarwind Inc is the hub of all documented co-filing activity
Every collaboration pair in the evidence involves Bluenergy Solarwind Inc as one partner, co-filing with Josh Varn, Massimo Torri, Mike Stewart, Mickey Silva, Jill Sablosky, Larry Mapes, and Kaushik Mallick — each pairing recording 4 co-filed records. No other applicant appears as a collaboration hub, indicating that consortium-style development is concentrated entirely within the Bluenergy network rather than distributed across the field.
Hub-and-spokeIndia leads filings; Europe, Israel, Sweden, US, and PCT each hold a secondary presence
India accounts for the largest share of patent records among the jurisdictions, reflecting active academic and startup filing from Indian institutions visible in the applicant list. Europe (EPO), Israel, Sweden, the United States, and WIPO (PCT) each have a smaller presence. Canada and Australia round out the coverage. The India-heavy distribution suggests enforcement strategy outside India may still be relatively underdeveloped for most filers.
India-ledGo 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.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| VARN JOSH | Bluenergy Solarwind Inc | 4 |
| TORRI MASSIMO | Bluenergy Solarwind Inc | 4 |
| STEWART MIKE | Bluenergy Solarwind Inc | 4 |
| SILVA MICKEY | Bluenergy Solarwind Inc | 4 |
| SABLOSKY JILL | Bluenergy Solarwind Inc | 4 |
| MAPES LARRY | Bluenergy Solarwind Inc | 4 |
| MALLICK KAUSHIK | Bluenergy Solarwind Inc | 4 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Bluenergy Solarwind anchors hybrid solar-wind designs; Von Bargen focuses on hydraulic-machine integration
The two co-leaders differ markedly in technical emphasis. Bluenergy Solarwind has built a portfolio centred on wind-turbine and solar hybrid configurations, while Von Bargen’s filings are oriented toward hydraulic-machine and engine classes.
Bluenergy Solarwind Inc
Bluenergy Solarwind Inc leads with 7 patent records, concentrated in F03D 3 (wind motors), F03D 9 (wind motor applications), and H02S 10 (photovoltaic/solar generation) — a profile consistent with integrated solar-wind microgrid systems. The firm also anchors all seven documented collaboration pairs in the corpus, indicating it operates as the primary consortium organiser in this niche. No momentum trend data for Bluenergy is provided in the evidence.
7 patent recordsDifferential Dynamics Corp
Differential Dynamics Corp holds 4 patent records and appears in the ranking as a distinct entity alongside the related Edward Von Bargen entries. Its momentum evidence flags it (as its Chinese-registered entity Differential Dynamics Corp) as a new entrant with 4 recent records, focusing on F03B 17 (hydraulic machines), G05F 1 (electric/magnetic variable control), and H02J 3 (power supply and grid systems) — suggesting a grid-integration and control-oriented approach rather than pure turbine-geometry coverage.
4 patent records| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Edward Von Bargen | 2 | ▲ new entrant |
| Differential Dynamics Corp | 4 | ▲ new entrant |
Generator control and variable-power regulation are under-served relative to core turbine classes
Several IPC classes appear in the corpus at low counts despite having clear technical relevance to microgrid-integrated VAWTs. These branches are observations of relative sparsity; they warrant further diligence before being treated as investment targets.
H02K & H02P · Generator design and motor-generator control
H02K (electric motors and generators) and H02P (control of motors and generators) each appear in only 6 patent records — a fraction of the dominant F03D class. For a microgrid application, generator topology and real-time output control are critical performance differentiators. The sparse coverage suggests that VAWT-specific generator design optimised for low-wind-speed microgrid conditions, and adaptive control algorithms for variable-speed operation, have not been deeply claimed. An entrant with expertise in permanent-magnet generator design or sensorless control could potentially file in this sub-space with limited prior-art crowding, subject to a freedom-to-operate search.
Search this in Eureka →G05F · Variable electric power regulation for off-grid systems
G05F (electric and magnetic variable control) appears in only 5 patent records, despite being directly relevant to voltage and power regulation in islanded microgrids powered by VAWTs. The low count, combined with the presence of H02J (grid systems) at 12 records, suggests that grid-connection and power-flow management has attracted more filing attention than the upstream regulation and conditioning layer. Organisations working on hybrid microgrid controllers or power-electronics interfaces between VAWT outputs and DC/AC bus architectures may find this branch relatively open, though the small corpus size means any new filing would meaningfully alter the landscape.
Search this in Eureka →How leaders differ across technology routes
Strength of each leader across the main technology routes.
| Player | F03D 9 · Wind motors (wind turbines) | F03D 3 · Wind motors (wind turbines) | F03B 17 · Hydraulic machines & engines | H02S 10 · Photovoltaic / solar power generation | H02J 3 · Power supply & grid systems |
|---|---|---|---|---|---|
| Bluenergy Solarwind Inc | Strong · 6 | Strong · 7 | Absent | Strong · 6 | Absent |
| Joel C. Goldblatt | Strong · 4 | Strong · 4 | Absent | Strong · 3 | Absent |
| Kaushik Mallick | Strong · 4 | Strong · 4 | Absent | Strong · 3 | Absent |
Frequently asked questions
The corpus covers 39 patent families. This is a notably small and specialised niche, meaning individual applicants and even single patents can materially shift the competitive picture.
Bluenergy Solarwind Inc and Von Bargen Edward are co-leaders, each with 7 patent records. Differential Dynamics Corp follows with 4 records. General Electric Co and Bharat Petroleum Corp Ltd each hold 2 records; the remaining applicants each hold 1 record.
India leads with 17 patent records, making it the dominant filing jurisdiction by a wide margin. Europe (EPO), Israel, Sweden, the United States, and WIPO (PCT) each account for 4 records. Canada has 3, and Australia and Chile each have 1.
The evidence places the field in a decline stage. Annual filing volume peaked in 2021 and has eased since, with a recent-window growth rate of -38%. The field is past its peak formation phase, and foundational claim territory appears to have been staked by early movers.
F03D (wind motors) is the dominant class with 29 patent records, followed by F03B (hydraulic machines) at 14, H02S (solar power generation) at 13, and H02J (power supply and grid systems) at 12. Generator design (H02K) and motor-generator control (H02P) each appear in only 6 records, and variable-power regulation (G05F) in 5 — making these the most under-served adjacent branches.
Yes, but it is concentrated entirely within the Bluenergy Solarwind Inc network. All seven documented collaboration pairs involve Bluenergy as a co-filer alongside individuals including Josh Varn, Massimo Torri, Mike Stewart, Mickey Silva, Jill Sablosky, Larry Mapes, and Kaushik Mallick, each pairing with 4 co-filed records. No other applicant appears as a collaboration node.
Map your own vertical-axis wind turbine landscape with PatSnap Eureka
Join 18,000+ innovators using PatSnap Eureka to map any technology landscape: search 2B+ patents and papers, surface key assignees, and generate a report like this in minutes.
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.