Vehicle-to-Grid System for Utility Grid Patent Landscape
Vehicle-to-Grid System for Utility Grid Patent Landscape in 2026
The vehicle-to-grid utility space spans 365 patent families and is in an active growth phase, with filings rising sharply over the multi-year window and the United States holding the lead jurisdiction. The field is moderately concentrated, with Beta Air LLC and Delta Electronics leading a fragmented top tier that includes automakers, power-electronics specialists, and utility operators across multiple geographies.
Beta Air and Delta Electronics lead a broadly distributed field
Beta Air LLC holds the top position with 23 patent families, edging Delta Electronics Inc at 22, followed by Toyota Jidosha KK and Huawei Technologies each at 15, and Toyota Motor North America at 13. The top five filers’ share of the hundred largest filers stands at 26%, indicating that no single player commands a dominant share.
The 26% concentration among the top five of the top hundred filers confirms a fragmented competitive structure. The gap between the leader (23 patent families) and the sixth-ranked Guangzhou Power Supply Bureau (10 patent families) is noticeable but not insurmountable, suggesting the second tier could close ground through sustained filing activity.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Beta Air LLC | 23 | |
| 2 | Delta Electronics Inc | 22 | |
| 3 | Toyota Motor Corporation | 15 | |
| 4 | Huawei Technologies Co Ltd | 15 | |
| 5 | Toyota Motor North America Inc | 13 | |
| 6 | Guangzhou Power Supply Bureau, Guangdong Power Grid Co Ltd | 10 | |
| 7 | Fermata Energy II LLC | 9 | |
| 8 | TAE Technologies Inc | 9 | |
| 9 | Huawei Digital Power Technologies Co Ltd | 9 | |
| 10 | Volvo Car Corporation | 8 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Contemporary Amperex Technology (Hong Kong) Limited | 7 | |
| 12 | Hyundai Mobis Co Ltd | 7 | |
| 13 | Contemporary Amperex Technology Co Ltd | 7 | |
| 14 | Cummins Inc | 6 | |
| 15 | Milwaukee Electric Tool Corporation | 5 | |
| 16 | Hyundai Motor Co Ltd | 5 | |
| 17 | GM Global Technology Operations LLC | 5 | |
| 18 | NEC Energy Solutions Inc | 5 | |
| 19 | InductEV Inc | 4 | |
| 20 | Honda Motor Co Ltd | 4 |
The diversity of entity types at the top — an aviation-focused EV charging specialist, a power-electronics manufacturer, two Toyota entities, and a major telecoms-turned-energy conglomerate — reflects that V2G technology sits at the intersection of multiple industries, and R&D investment is not yet converging around a single dominant stack.
Filing data for the most recent 18–24 months is subject to publication lag and will undercount activity; the apparent plateau in 2025–2026 data should not be read as a slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filings have grown sharply since 2019 and the technology mix is anchored by power and EV classes
Annual filing volume accelerated from single digits in 2017–2018 to a sustained run above 39 families per year from 2020 onward, with a 91% growth rate over the recent window. The technology composition is dominated by two classes that together cover the core V2G interaction, with a long tail of adjacent branches pointing to expanding application contexts.
Annual filing trend
Filings jumped sharply from 2019 (26 families) through 2023–2024 (71 and 75 families respectively), consistent with the 91% recent-window growth rate. The 2025 figure of 39 and the near-zero 2026 count reflect publication lag rather than a real deceleration; the underlying growth trajectory remains intact on a multi-year basis.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H02J (power supply and grid systems) and B60L (electric vehicle propulsion) together account for the overwhelming share of classified records, confirming that bidirectional power management and EV charging control are the field’s technical core. H02M (power conversion) forms a meaningful secondary cluster, while H01M (batteries), G06Q (business and data processing), and B64F (aircraft ground installations) are notable but sparsely filed 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.
Vehicle-to-grid system with power loss compensation
A vehicle-to-grid system connected to a power grid includes a first vehicle group of one or more vehicles connected to the power grid, a second vehicle group of one or more vehicles connected to the power grid, and a vehicle-to-grid controller. The vehicle-to-grid controller causes each vehicle from the second vehicle group to supply electrical power to the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Methods and systems for an integrated charging sys… | 203 |
| 2 | Method and apparatus for charging and discharging | 53 |
| 3 | Charging system for electric vehicles | 45 |
| 4 | Vehicle-Solar-Grid Integration for Back up Power | 43 |
| 5 | Module of suppressing inrush current, method of co… | 39 |
| 6 | Methods for using temperature data to protect elec… | 34 |
| 7 | 一种基于风光柴储微网的双向充电桩系统 | 32 |
| 8 | Energy storage based countermeasure for a delayed … | 32 |
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
The V2G utility grid space combines a growth-stage filing curve with moderate fragmentation, creating both room for differentiated entry and risk of rapid crowding in core classes. Four structural reads follow.
Growth stage — annual volume still rising
The lifecycle is classified as Growth, with annual filings still rising and the 2024 peak of 75 families not yet showing an eased trend. The 91% recent-window growth rate confirms this is not a mature, saturated field. R&D teams entering now can still build meaningful portfolio positions without facing the cost structure of a late-stage crowded space.
Growth stageFragmented top tier — no single dominant assignee
The top five filers hold 26% of the top hundred filers’ combined total, a moderate concentration level that means no single player can set de-facto standards through patent density alone. The top-ranked applicant holds 23 patent families, only one ahead of the second-placed challenger at 22. New entrants with focused filing strategies in under-served sub-classes can carve defensible positions.
FragmentedLimited co-filing — Toyota entities are the primary co-applicant pair
The only documented co-filing relationship in evidence is between Toyota Motor North America and Toyota Jidosha KK, with one jointly filed patent family. This intra-corporate pairing reflects coordinated IP strategy between a parent and its North American entity rather than cross-industry collaboration. The near-absence of cross-company co-filings suggests that formal R&D alliances have not yet materialized in the patent record, leaving open the possibility of ecosystem partnerships as a differentiator.
Low collaborationUS leads, China and Europe are active secondary markets
The United States accounts for the highest number of patent records, followed by China and Europe (EPO). India and WIPO (PCT) filings are also present, indicating that applicants are beginning to protect V2G technology in emerging EV markets. Germany and Canada round out the coverage. Teams seeking global freedom-to-operate should prioritize US, CN, and EP prosecution as the core three jurisdictions.
US-led, globalGo 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 |
|---|---|---|
| Toyota Motor North America Inc | Toyota Motor Corporation | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Beta Air and Delta Electronics lead distinct technical routes at the top
The two leading applicants approach V2G from different angles — one rooted in aviation-linked EV charging infrastructure, the other in power-conversion electronics — and their momentum profiles diverge sharply in the recent period.
Beta Air LLC
Beta Air LLC holds the top position with 23 patent families and a flat recent trajectory (0% change vs. prior period), indicating a stable but not accelerating filing pace. Its technical emphasis runs across power supply and grid systems (H02J 7), EV propulsion and charging (B60L 53), and notably aircraft ground installations (B64F 1), reflecting its aviation-linked eVTOL charging infrastructure focus. This distinctive B64F footprint distinguishes Beta Air from conventional automotive V2G players.
families: 23Delta Electronics Inc
Delta Electronics Inc sits at 22 patent families with a modest decline in recent filings (-9% vs. prior period). Its portfolio is concentrated in power conversion — H02J 7 (grid systems), H02M 1, and H02M 7 (AC/DC conversion) — signalling a power-electronics-first approach to V2G hardware rather than a vehicle-integration strategy. As a high-volume power electronics manufacturer, Delta’s V2G IP directly supports charger and inverter product lines serving utility-scale deployments.
families: 22| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Beta Air LLC | 11 | ▬ 0% |
| Delta Electronics Inc | 10 | ▼ -9% |
| Huawei Technologies Co Ltd | 3 | ▼ -75% |
| Toyota Motor North America Inc | 11 | ▲ new entrant |
| Contemporary Amperex Technology Co Ltd (CATL) | 4 | ▲ new entrant |
| Guangzhou Power Supply Bureau, Guangdong Power Grid Co Ltd | 10 | ▲ new entrant |
| Huawei Digital Power Technologies Co Ltd | 5 | ▲ new entrant |
| Toyota Motor Corporation | 8 | ▲ new entrant |
Under-served branches worth watching in V2G utility grid IP
Several IPC branches sit at the margins of the dominant H02J/B60L core with low filing counts relative to technical relevance. These represent observations of relative sparsity; they warrant further diligence before being treated as investment opportunities.
G06N · AI-based computing models
G06N (computing based on AI models) carries only 10 patent records against a total corpus anchored in the hundreds for the core classes. Given that AI-driven grid dispatch, predictive state-of-charge management, and demand-response optimization are increasingly discussed in V2G literature, the sparse filing count suggests the IP has not yet followed the technical conversation. An entrant with demonstrated AI-for-grid algorithms and a credible V2G integration path could build a differentiated position here before the class becomes crowded.
Search this in Eureka →G06Q · Business and commerce data processing
G06Q has 29 patent records — meaningful in absolute terms but representing only 3% of classified records in this corpus. V2G business models involving energy trading, aggregation platforms, and utility billing are commercially significant but appear under-protected in patent form. This may reflect a preference for trade-secret or software-copyright protection in the business-model layer, or simply an early-stage IP strategy gap. Teams developing V2G market-settlement software or EV-fleet aggregation platforms should assess whether G06Q claims provide a viable protection route.
Search this in Eureka →How leading applicants differ by technical route
Strength of each leader across the main technology routes.
| Player | H02J 7 · Power supply & grid systems | B60L 53 · Electric vehicle propulsion | H02J 3 · Power supply & grid systems | B60L 55 · Electric vehicle propulsion | H02M 7 · Power conversion (AC/DC etc.) |
|---|---|---|---|---|---|
| Beta Air LLC | Strong · 23 | Strong · 19 | Absent | Moderate · 5 | Absent |
| Huawei Technologies Co Ltd | Strong · 17 | Strong · 10 | Absent | Absent | Moderate · 7 |
| Delta Electronics Inc | Strong · 12 | Moderate · 6 | Moderate · 4 | Absent | Strong · 8 |
| Toyota Motor North America Inc | Strong · 5 | Strong · 6 | Strong · 9 | Moderate · 4 | Absent |
| Volvo Car Corporation | Absent | Strong · 6 | Strong · 8 | Strong · 8 | Absent |
| Cummins Inc | Strong · 6 | Strong · 6 | Absent | Strong · 6 | Moderate · 3 |
| Guangzhou Power Supply Bureau, Guangdong Power Grid Co Ltd | Absent | Strong · 9 | Strong · 10 | Absent | Absent |
Frequently asked questions
The corpus covers 365 patent families in scope, with the United States holding the highest number of patent records among jurisdictions, followed by China and Europe (EPO).
Beta Air LLC leads with 23 patent families, narrowly ahead of Delta Electronics Inc at 22. Toyota Jidosha KK and Huawei Technologies both hold 15 patent families, and Toyota Motor North America follows at 13.
Yes. The lifecycle is classified as Growth, with a 91% recent-window growth rate and annual filings reaching 75 patent families in 2024. The apparent drop in 2025–2026 data reflects publication lag and should not be interpreted as a real slowdown.
H02J (power supply and grid systems) and B60L (electric vehicle propulsion) dominate the classified records. H02M (power conversion) forms a significant secondary cluster. Batteries (H01M), business data processing (G06Q), and aircraft ground installations (B64F) are present but sparsely filed.
The top five filers hold 26% of the top hundred filers’ combined total, indicating moderate fragmentation. No single applicant holds a commanding share, and the spread of entity types — automotive OEMs, power electronics firms, utility operators, and energy specialists — confirms a multi-sector competitive field.
G06N (AI-based computing models) and G06Q (business and commerce data processing) are the most notable adjacent branches with low filing counts relative to their technical and commercial relevance. AI-driven grid dispatch and V2G aggregation business-model platforms appear under-protected in the current patent record.
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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.
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