EV Fast Charging for Aviation Patent Landscape 2026
EV fast charging for aviation remains a small but expanding field, with 62 patent families concentrated among a handful of automotive and energy-technology filers led by Zoox Inc. The field grew substantially on a multi-year basis, though annual volume has eased from its 2022 peak, and the United States accounts for the dominant share of filing activity.
Zoox leads a tightly concentrated field with a sizeable tier gap to challengers
Zoox Inc holds the top position with 15 patent records, nearly double the second-ranked filer UT Battelle LLC at 8 patent records, establishing a clear leadership gap at the front of the ranking.
The top five filers collectively account for 53% of the combined output of the hundred largest filers, signaling a highly concentrated competitive structure where a small group of organizations define the technical agenda.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Zoox Inc | 15 | |
| 2 | UT Battelle LLC | 8 | |
| 3 | GM Global Technology Operations LLC | 7 | |
| 4 | Rivian Holdings LLC | 5 | |
| 5 | Fluid Power AI Inc | 5 | |
| 6 | Carbonyl Chem Consulting LLC | 4 | |
| 7 | Nyobolt Ltd | 4 | |
| 8 | Plug P2P Inc | 2 | |
| 9 | Robert Bosch Corp | 2 | |
| 10 | EdgeEnergy LLC | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | MERCEDES-BENZ RES & DEV NORTH AMERICA | 2 | |
| 12 | Phoenix Motorcars LLC | 2 | |
| 13 | Robert Bosch GmbH | 1 | |
| 14 | Innovation Asset Collective | 1 | |
| 15 | Allstate Insurance Company | 1 | |
| 16 | Intel Corporation | 1 | |
| 17 | Mr. Pathkota Sai Niranjan Kumar | 1 | |
| 18 | Mrs. Ujwala Gajula | 1 | |
| 19 | Dr. Gundlapalli Satheesh | 1 | |
| 20 | Dr. K. Shyamala Devi | 1 |
The leaders’ positions imply that any new entrant must either differentiate on under-served technical branches or accept a disadvantaged licensing posture relative to Zoox, UT Battelle, and GM Global Technology Operations in the core charging-protocol and grid-integration spaces.
Filing counts for the most recent 18–24 months are understated due to standard patent publication lag; apparent softness in 2023–2025 data should not be interpreted as a real slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year growth with a 2022 peak and a technology mix anchored in EV propulsion and grid systems
The filing trend chart tracks annual activity from 2017 through 2026, while the technology composition chart maps the IPC branch distribution across the corpus. Together they reveal a field that expanded rapidly through 2022 and is now broadening its technical scope.
Annual filing trend
Activity was negligible through 2019, then accelerated sharply to a peak in 2022 at 18 records, reflecting heightened industry interest in electrified aviation ground infrastructure. Volumes in 2023–2025 appear lower but are materially understated by publication lag and should not be read as a genuine contraction.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (electric vehicle propulsion) dominates with 64 records, followed by H02J (power supply and grid systems) at 36 and H02M (power conversion) at 20, confirming that charging-interface and grid-integration technologies form the core. Aviation-specific class B64D (aircraft equipment) appears with only 1 record, underscoring how much of the filing activity remains rooted in general EV charging technology rather than aircraft-specific engineering.
↗ 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.
DC fast charger wireless-charging adapter
A wireless-charging adapter is connectable to a direct current (DC) fast charger and includes an induction coil for wireless charging a second induction coil on a vehicle. In some instances, the adapter may include an electrical connector to mate with a DC fast charger. In addition, the adapter may include hardware and/or software to receive a DC from the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Wireless power system | 58 |
| 2 | Edge-centric techniques and technologies for monit… | 30 |
| 3 | Battery preconditioning systems and methods for el… | 23 |
| 4 | Charging and discharging of DC microgrid energy st… | 12 |
| 5 | DC fast charger wireless-charging adapter | 10 |
| 6 | Vehicle-based charging system for electric vehicles | 10 |
| 7 | Aircraft charging unit | 10 |
| 8 | Thermal management for vehicle charging systems | 9 |
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 combination of concentrated ownership, growth-stage dynamics, US-centric filing, and nascent aviation-specific coverage shapes the risk-reward profile for new entrants and incumbents alike.
Growth stage with peak behind it — window for differentiation remains open
The lifecycle assessment places this field in Growth, driven by a recent three-year filing window that sits well above the prior three-year period. However, annual volume has eased from its 2022 peak, suggesting the initial surge of broad platform patents is maturing. Teams entering now can still capture meaningful positions in under-served sub-domains before the field consolidates further.
Growth · post-2022 peakFive players control more than half of top-100 filer output
With the top five filers holding 53% of the hundred largest filers’ combined patent records, the field is highly concentrated. Zoox alone accounts for 15 patent records against a total of 20 ranked applicants with meaningful portfolios. New entrants must target technical niches not yet claimed by the top tier to avoid immediate freedom-to-operate constraints.
High concentrationRobert Bosch GmbH and Robert Bosch Corp are the only confirmed co-filers
The sole identified co-filing relationship links Robert Bosch GmbH (Germany) and Robert Bosch Corp (US), with 2 jointly filed records — most likely reflecting intra-group prosecution strategy rather than an external alliance. No cross-company collaborative filings are evident in the corpus, suggesting the ecosystem has not yet formed the research consortia typical of more mature electrification domains.
Nascent ecosystemUS-centric with limited international prosecution to date
The United States leads with 43 records, followed by WIPO PCT filings at 10, Europe (EPO) at 9, and India at 2. The relatively small PCT and EPO counts relative to the US base indicate that many applicants have not yet pursued broad international protection, which may reflect early-stage commercialization timelines or resource constraints among smaller filers.
US-dominantGo 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 |
|---|---|---|
| Robert Bosch GmbH | Robert Bosch Corp | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Zoox anchors EV propulsion and grid integration; UT Battelle bridges propulsion and grid equally
The two leading filers differ in technical emphasis: Zoox concentrates on charging-interface and power-conversion technologies, while UT Battelle distributes its portfolio evenly across propulsion and grid-supply branches.
Zoox Inc
Zoox holds 15 patent records, the largest portfolio in the corpus. Its technical focus spans B60L 53 (electric vehicle propulsion, 15 records), H02J 50 (power supply and grid systems, 6 records), and H02M 1 (power conversion, 4 records), indicating a broad platform strategy across the charging stack. Momentum is flagged as a new entrant in the recent filing window, with 6 records in the most recent period — consistent with rapid portfolio build-out.
patent records: 15UT Battelle LLC
UT Battelle holds 8 patent records, with equal emphasis on B60L 53 (propulsion, 8 records), H02J 50 and H02J 7 (grid supply, 8 records each), reflecting a balanced grid-and-vehicle integration approach consistent with its national-laboratory research mandate. Momentum is also flagged as a new entrant in the recent window, with 5 recent records, suggesting continued active prosecution.
patent records: 8| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Zoox Inc | 6 | ▲ new entrant |
| UT Battelle LLC | 5 | ▲ new entrant |
| GM Global Technology Operations LLC | 5 | ▲ new entrant |
| Rivian Intellectual Property Holdings LLC | 2 | ▲ new entrant |
| Fluid Power AI Inc | 3 | ▲ new entrant |
| Nyobolt Ltd | 4 | ▲ new entrant |
| Carbonyl Chem Consulting LLC | 4 | ▲ new entrant |
Under-served branches adjacent to the dominant charging-stack core
Several IPC branches appear at low frequency relative to the dominant B60L and H02J classes. These represent observations of relative sparsity; where plausible technical value and a realistic entry path exist, they are noted as worth monitoring.
B64D · Aircraft equipment
With only 1 patent record classified under B64D (aircraft equipment) against 64 in the dominant B60L class, aviation-specific charging hardware — such as aircraft-side connectors, on-board charge management for eVTOL platforms, and ground power unit interfaces — remains almost entirely unclaimed. The top-cited patent titled ‘Aircraft charging unit’ confirms that the technical problem exists and has attracted at least one solution, but the IP coverage is sparse. An entrant with hardware or systems expertise in aerospace ground support equipment could file meaningfully differentiated claims in this branch with limited crowding risk.
Search this in Eureka →H01M · Batteries, cells & fuel cells
H01M accounts for only 7 patent records, representing 5% of the top-100 filer combined output — low relative to the 64 records in B60L and the centrality of battery performance to fast-charging feasibility. Aviation duty cycles impose extreme thermal and charge-rate stresses on cells, yet battery-level IP in this corpus is thin. Fluid Power AI Inc is the only filer with a meaningful H01M presence (3 records), suggesting the sub-domain is accessible. Teams with electrochemistry or cell-management expertise could address aviation-grade fast-charge battery design with limited direct competition from the current field leaders.
Search this in Eureka →How leading filers differ across technical routes
Route coverage across the main technology branches in the current evidence set.
| Player | B60L 53 · Electric vehicle propulsion | H02J 7 · Power supply & grid systems | B60L 58 · Electric vehicle propulsion | H02J 50 · Power supply & grid systems | H02M 1 · Power conversion (AC/DC etc.) |
|---|---|---|---|---|---|
| Zoox Inc | Strong · 15 | Emerging · 3 | Absent | Moderate · 6 | Moderate · 4 |
| UT Battelle LLC | Strong · 8 | Strong · 8 | Absent | Strong · 8 | Absent |
| GM Global Technology Operations LLC | Strong · 7 | Strong · 7 | Moderate · 3 | Absent | Moderate · 2 |
| Rivian Intellectual Property Holdings LLC | Strong · 2 | Strong · 3 | Strong · 3 | Absent | Moderate · 1 |
| Nyobolt Ltd | Strong · 3 | Strong · 2 | Moderate · 1 | Absent | Absent |
| Mercedes-Benz Group AG | Strong · 2 | Strong · 2 | Strong · 2 | Absent | Absent |
| Fluid Power AI Inc | Absent | Absent | Strong · 5 | Absent | Absent |
Frequently asked questions
The corpus contains 62 patent families in scope. This is a comparatively small field, reflecting the early-stage commercialization of electrified aviation ground infrastructure.
Zoox Inc leads with 15 patent records, nearly double the second-ranked filer UT Battelle LLC at 8 patent records. The top five filers together account for 53% of the combined output of the hundred largest filers.
The field is assessed as Growth stage. Recent three-year filings sit well above the prior three-year window, indicating multi-year expansion. Annual volume peaked in 2022 and has since eased, though the most recent years are further understated by publication lag.
The United States leads with 43 patent records, followed by WIPO PCT at 10, Europe (EPO) at 9, and India at 2. International prosecution beyond the US remains limited relative to the size of the corpus.
B60L (electric vehicle propulsion) dominates at 64 records, followed by H02J (power supply and grid systems) at 36 and H02M (power conversion) at 20. Aviation-specific class B64D (aircraft equipment) appears in only 1 record, indicating that most current IP addresses general EV charging rather than aircraft-specific systems.
Yes. B64D (aircraft equipment) holds only 1 patent record despite being directly relevant to aviation charging hardware, and H01M (batteries, cells and fuel cells) holds only 7 records despite the centrality of battery performance to fast-charging feasibility. Both branches are sparse relative to the dominant classes and represent under-served areas adjacent to the current IP core.
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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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