EV Fast Charging for Electric Buses Patent Landscape
The patent corpus for EV fast charging applied to electric buses is nascent — 14 patent families in scope — yet the field is in a clear growth phase, with annual filings rising sharply from 2022 onward and a 500% recent-window increase. Fermata Energy entities hold the dominant position, while India and the United States together account for the bulk of jurisdictional coverage.
Fermata Energy entities lead a highly concentrated, early-stage field
With 14 patent families in scope, EV fast charging for electric buses remains a thin but accelerating corpus. Fermata Energy II LLC is the top-ranked filer with 4 patent families, followed closely by Fermata Energy LLC with 3 patent families — meaning the two related Fermata entities together account for the majority of documented activity among the ranked applicants.
The top five filers collectively hold 85% of the ranked applicants visible in this query’ combined total, signaling extreme concentration. Outside the Fermata entities, the remaining ranked applicants each hold only one or two patent families, indicating no second tier of established challengers has yet formed.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Fermata Energy II LLC | 4 | |
| 2 | Fermata Energy LLC | 3 | |
| 3 | VIJETA | 2 | |
| 4 | Abhay Patwardhan | 1 | |
| 5 | Vijay Chheda | 1 | |
| 6 | VIT-AP University | 1 | |
| 7 | The Board of Trustees of the Leland Stanford Junior University | 1 |
The Fermata entities’ dominance, combined with their focus on bi-directional power conversion and vehicle-to-grid optimization, suggests that intellectual property in this niche is currently shaped primarily by a single commercial actor. This creates both a reference point and a barrier for engineers entering the space.
The most recent filing years are likely undercounted due to standard patent publication lag of 18–24 months; apparent plateaus in 2024–2025 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.
Filing activity surged from 2022 onward; electric vehicle propulsion dominates the technology mix
Two patterns define this field’s structure: a sharp filing ramp beginning in 2022–2023, and a technology composition anchored in EV propulsion with secondary coverage in power supply and grid systems.
Annual filing trend
Filings were absent from 2017 through 2019, with isolated activity in 2020 and 2022, then jumped to five families each in 2023 and 2024. The 500% recent-window growth rate confirms a genuine acceleration. Zero values for 2025 and 2026 reflect publication lag, not a halt in activity.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (electric vehicle propulsion) is the visible IPC class, present across all 14 families in scope. H02J (power supply and grid systems) appears in 11 records, reflecting the centrality of grid-interaction and vehicle-to-grid capability. H02M (power conversion), G06Q (business and administrative data processing), and H05K (printed circuits and assemblies) each appear in fewer records, pointing to adjacent but less-developed angles.
↗ 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.
Method to achieve 24/7 carbon-free electrified fle…
An electric vehicle fleet operations system includes electric vehicle charging stations; electric energy storage batteries; solar panels; a fleet of electric vehicles adapted to charge using the electric vehicle charging stations; a forecasting module predicting operational parameters including electricity prices, weather variables, power production of the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Device for bi-directional power conversion and cha… | 31 |
| 2 | Devices, systems, and methods for optimization of … | 5 |
| 3 | Devices, systems, and methods for optimization of … | 2 |
| 4 | Device for bi-directional power conversion and cha… | 2 |
| 5 | Method to achieve 24/7 carbon-free electrified fle… | 1 |
| 6 | Device for bi-directional power conversion and cha… | 1 |
| 7 | A bi-directional mobile direct current fast electr… | 1 |
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
A nascent corpus dominated by a single commercial actor, with activity concentrated in two jurisdictions and no documented co-filing, defines both the opportunity and the risk profile for new entrants.
Growth stage: annual filings still rising from a near-zero base
The lifecycle evidence classifies this field as Growth, with annual filings still rising and the most recent years understated by publication lag. The corpus emerged meaningfully only from 2020, making this an early-to-mid growth phase rather than a maturing or saturated space. Engineers entering now face limited prior art but also limited published learning from competitors.
Growth stageOne visible actor, no established second tier
The top five filers hold 85% of the ranked applicants visible in this query’ combined total, and the top two — both Fermata Energy entities — together represent the clear plurality. No other applicant holds more than two patent families. This concentration means a single entity’s licensing posture or litigation strategy could materially affect freedom to operate for the rest of the field.
High concentrationNo co-filing activity detected in this corpus
The collaboration evidence shows no co-applicant filings within the current corpus. Every active filer has filed independently. This absence of joint development agreements or consortium activity is consistent with the field’s early stage, but it also means no pre-existing IP-sharing arrangements constrain or enable new partnerships. An organization seeking a joint-development entry path would be building from a clean slate.
Evidence pendingIndia and the United States share lead jurisdiction status
India and the United States each account for six patent records, with WIPO PCT filings adding two more. This dual-jurisdiction split is notable: India’s lead position likely reflects the activity of several individual and institutional Indian filers, while U.S. coverage is anchored by the Fermata entities. Engineers evaluating freedom to operate should treat both jurisdictions as primary risk zones.
India & US leadGo 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.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Fermata Energy II LLC
The top-ranked filer with 4 patent families, Fermata Energy II LLC concentrates its portfolio in B60L (electric vehicle propulsion), specifically sub-classes covering charging infrastructure and battery management. As a new entrant by momentum classification, its recent filings represent the most current public disclosure in this niche.
patent families: 4Fermata Energy LLC
With 3 patent families and a new-entrant trajectory, Fermata Energy LLC focuses on B60L sub-classes for charging and vehicle-to-grid, supplemented by H02J power supply and grid-systems coverage. Together with Fermata Energy II LLC, the combined Fermata portfolio spans bi-directional power conversion, fleet optimization, and grid-interaction methods — the three pillars of the current corpus.
patent families: 3Frequently asked questions
The current evidence covers 14 patent families in scope. This is a nascent corpus; for context, the field produced no filings visible in 2017–2019 and only sporadic activity in 2020–2022 before accelerating in 2023–2024.
Fermata Energy II LLC is the top-ranked applicant with 4 patent families, followed by Fermata Energy LLC with 3. The two related entities together represent the visible position in the corpus.
India and the United States each account for 6 patent records, making them co-equal lead jurisdictions. WIPO PCT filings add 2 more records, suggesting some applicants are pursuing broader international coverage.
B60L (electric vehicle propulsion) and H02J (power supply and grid systems) are the visible classes. H01M (batteries and cells), H02S (solar power), and G05B (control systems) each appear in only 1–2 records, representing the least-covered adjacent branches.
No co-applicant or joint filing activity is present in the current corpus. Every ranked filer has filed independently, which is consistent with the field’s early growth stage.
Those zeros reflect standard patent publication lag of 18–24 months, not an actual halt in filing activity. The lifecycle evidence classifies the field as still in a growth phase, and recent years are explicitly noted as understated in the evidence.
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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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