EV Motor Winding Materials Patent Snapshot 2026
The EV motor winding materials patent space is at an early-growth stage with 9 patent families in scope and a recent-window growth rate of 200%, driven by a small group of automotive and materials specialists. Ford Global Technologies leads decisively, while three adjacent branches — hybrid control, motor control, and electrical measurement — remain sparsely covered and represent plausible entry points for differentiated R&D.
Ford leads a highly concentrated, nascent field
Ford Global Technologies holds the top-ranked position in this corpus, with 5 patent records — more than double the next-ranked applicants. Schaeffler Technologies, Volvo Car, and Sumitomo Bakelite North America each hold 2 patent records, forming a thin second tier.
The top five filers account for 80% of the combined total among the ranked applicants visible in this query, signalling unusually high concentration for a field still in its growth phase. The tier gap between Ford and all challengers is stark: no single rival has yet built a portfolio of comparable depth.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Ford Global Technologies LLC | 5 | |
| 2 | SCHAEFFLER TECHNOLOGIES AG & CO KG | 2 | |
| 3 | Volvo Car Corporation | 2 | |
| 4 | Sumitomo Bakelite North America Inc. | 2 | |
| 5 | Potential Motors Inc. | 1 | |
| 6 | Robert Bosch GmbH | 1 | |
| 7 | Caterpillar Inc. | 1 | |
| 8 | SRM Valliammai Engineering College | 1 |
Ford’s lead position, anchored in both electric vehicle propulsion (B60L) and electric motor design (H02K), suggests a vertically integrated strategy covering vehicle-level integration alongside core motor architecture. Challengers occupy narrower sub-spaces, leaving room for entrants willing to invest in the more sparsely filed branches.
The most recent 18–24 months of filings are subject to publication lag and are likely under-counted; the apparent activity in 2024–2026 should be read as a floor, not a ceiling. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity is expanding on a multi-year basis, with motors and propulsion dominating the technology mix
The annual filing trend and technology composition charts together reveal a field that is growing but unevenly distributed across IPC branches, with two branches accounting for the bulk of recorded activity.
Annual filing trend
Filing activity was negligible from 2017 through 2022, with isolated single-year spikes. The recent-window growth rate stands at 200%, consistent with the Growth life-cycle designation. The years 2024–2026 are subject to publication lag and will likely revise upward; treat the current values as provisional minimums rather than definitive counts.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (electric vehicle propulsion) and H02K (electric motors and generators) are tied as the most-represented IPC classes, each with 10 patent records. B60K (vehicle propulsion and drive) is a distant third at 3 records. B60W (hybrid/joint vehicle control), G01R (electric and magnetic measurement), and H02P (control of motors and generators) each appear in only 1 record, marking them as the sparsest and most adjacent branches in the current corpus.
↗ 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.
Stator exhibiting improved thermo-electrical prope…
Embodiments of this invention includes a stator exhibiting improved electrical and thermal properties for electrical machines, for example, motors and generators having a number of applications including but not limited to electronic axle (e-axle) used in a variety of automobiles, among others, where the coil temperature of the e-axle during operation is… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Permanent Magnet Machine | 52 |
| 2 | Permanent Magnet Machine | 14 |
| 3 | Electric drivetrain using a configurable power con… | 10 |
| 4 | Permanent magnet rotor machine with asymmetric flux | 9 |
| 5 | Electronics housing for an e-axis drive and e-axis… | 4 |
| 6 | Permanent Magnet Machine | 2 |
| 7 | A permanent magnet machine | 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.
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.
Ford Global Technologies
Ford Global Technologies holds 5 patent records, the largest portfolio in this corpus. Its technology emphasis spans B60L 50 (electric vehicle propulsion) and H02K 1 and H02K 21 (electric motors and generators), reflecting a dual focus on vehicle-level integration and motor architecture. No momentum trend is available from the applicant momentum data for Ford specifically, but its position at more than double the next-ranked filer reflects sustained early commitment to this sub-field.
5 patent recordsSumitomo Bakelite North America
Sumitomo Bakelite North America holds 2 patent records and is classified as a new entrant with an upward momentum trend. Its technical focus is tightly concentrated in H02K 1, H02K 3, and H02K 15 — all within electric motor and generator design — consistent with a materials supplier positioning at the component level rather than the vehicle system level. This materials-specialist angle differentiates it from the OEM-led filings and may signal emerging supply-chain IP in winding insulation or impregnation resin.
2 patent recordsFrequently asked questions
The current corpus contains 9 patent families in scope. This is a small but growing field, with a recent-window growth rate of 200% indicating rapid expansion from a near-zero base.
Ford Global Technologies is the top-ranked filer, holding 5 patent records — more than double any other applicant. Schaeffler Technologies, Volvo Car, and Sumitomo Bakelite North America each hold 2 patent records.
The United States leads with 7 patent records. Europe (EPO), the United Kingdom, and WIPO (PCT) each have 2 records, while Canada and India each have 1. The US-centric concentration suggests limited international filing coverage beyond North America at this stage.
B60L (electric vehicle propulsion) and H02K (electric motors and generators) are the most represented classes, each with 10 patent records. B60K (vehicle propulsion and drive) appears in 3 records. B60W, G01R, and H02P each appear in only 1 record, making them the sparsest branches in the current corpus.
No co-applicant filings have been detected in this corpus. All applicants appear to be pursuing independent IP strategies, with no recorded cross-company or industry-academia joint filings at this time.
The field is classified at the Growth stage. Annual filings are still rising on a multi-year basis, with a recent-window growth rate of 200%. The most recent 18–24 months are subject to publication lag and the true activity level is likely higher than current records reflect.
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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.
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.