E-Drive Efficiency Patent Snapshot 2026
The e-drive efficiency patent corpus is a nascent, fragmented field with 8 patent families in scope and no single applicant holding more than one patent record. Activity has been rising since 2021 and the most recent years remain understated by publication lag, indicating the field is in an early growth phase.
A fragmented early-stage field led by Robert Bosch GmbH
Robert Bosch GmbH heads the applicant ranking with 1 patent record, tied at the top alongside nine other filers including Exro Technologies Inc., ZF Friedrichshafen AG, Freni Brembo SpA, and Ohio State Innovation Foundation. No applicant has established a commanding portfolio lead.
The top five filers collectively account for 50% of the ranked applicants visible in this query’ combined total, yet each holds only 1 patent record — reflecting structural dispersion rather than genuine concentration. There is no discernible tier gap between leader and challengers at this stage.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Robert Bosch GmbH | 1 | |
| 2 | Bharathi K | 1 | |
| 3 | Exro Technologies Inc. | 1 | |
| 4 | ZF Friedrichshafen AG | 1 | |
| 5 | Devikalyani R | 1 | |
| 6 | Ohio State Innovation Foundation | 1 | |
| 7 | Lakshmi G | 1 | |
| 8 | Freni Brembo SpA | 1 | |
| 9 | SR University | 1 | |
| 10 | SRM Valliammai Engineering College | 1 |
The even distribution among applicants suggests the field has not yet consolidated around visible IP holders. Both established automotive suppliers (Bosch, ZF, Brembo) and specialist startups (Exro Technologies) are staking early positions, which leaves the assignee snapshot open.
Filings from the most recent 18–24 months are likely under-counted due to standard patent publication lag; the corpus should be read as a lower bound on current activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Rising annual filings dominated by electric vehicle propulsion technology
Two complementary views — the annual filing trend and the IPC technology mix — together reveal a field in early growth with a clear technical center of gravity in electric vehicle propulsion control.
Annual filing trend
Filings were absent through 2020, with the first activity appearing in 2021. Volume has grown year-on-year since then, reaching its highest recorded count in 2026. Because the most recent one to two years are subject to publication lag, the apparent 2026 peak likely understates actual current activity.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (Electric vehicle propulsion) is the visible IPC class, accounting for all 8 patent records in scope. Adjacent classes — B60K (vehicle propulsion and drive), B60W (hybrid/joint vehicle control), E02F (excavating and earth moving), G05B (control and regulating systems), and G06F (electric digital data processing) — each appear in only 1 patent record, marking them as sparse branches relative to the B60L core.
↗ 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 for operating an electric drivetrain for a …
A method for operating an electric drivetrain of a working machine is provided wherein, the drivetrain includes a work drive with a hydraulic work device and an electric work motor, and a travel drive with an electric travel motor. The method includes operating the work drive independently of the travel drive, and supplying a power demanded by the work… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Method for operating an electric drivetrain for a … | 3 |
| 2 | Range extension with optimal traction control for … | 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.
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.
Robert Bosch GmbH
Robert Bosch GmbH holds 1 patent record in the corpus, concentrated in B60L 15 (electric vehicle propulsion motor control) and B60L 53 (charging of electric vehicles). Momentum is flagged as a new entrant, signaling this is a first entry into the specific e-drive efficiency search space rather than an extension of a deep existing portfolio here. As a global Tier-1 automotive supplier, Bosch’s entry carries strategic weight disproportionate to the current record count.
patent records: 1Exro Technologies Inc.
Exro Technologies Inc. holds 1 patent record, focused on B60L 15 (motor control) and B60L 58 (battery management for electric vehicles). Like Bosch, its momentum is classified as a new entrant. Exro is a Canadian power-electronics specialist known for coil-switching motor technology, making its presence in this corpus technically coherent. Its small but targeted portfolio could represent a foundational IP position in adaptive motor efficiency control.
patent records: 1Frequently asked questions
The corpus contains 8 patent families in scope. This is a small, early-stage dataset and the most recent filing years are likely under-counted due to standard patent publication lag.
Robert Bosch GmbH tops the ranking with 1 patent record, tied with nine other applicants including Exro Technologies Inc., ZF Friedrichshafen AG, Freni Brembo SpA, and Ohio State Innovation Foundation. No applicant has established a portfolio lead over the others.
The United States leads with 4 patent records, followed by India with 3 and WIPO (PCT) with 1. The limited PCT coverage suggests most applicants have not yet pursued broad multi-jurisdictional protection.
B60L (Electric vehicle propulsion) is visible in, covering all 8 patent records. Adjacent classes — B60K, B60W, E02F, G05B, and G06F — each appear in only 1 patent record, indicating that the field is currently narrowly focused on core propulsion control.
The field is in the Growth stage, with annual filings rising from a zero baseline before 2021 to its highest recorded level in 2026. Prior-art density is low, meaning new entrants can still influence the foundational IP layer rather than navigating a dense existing thicket.
No co-applicant or collaborative filing pairs were detected in the current corpus. This may reflect the field’s early stage; formal R&D partnerships have either not yet formed or have not yet produced published patent output. Monitoring for joint filings between OEMs, Tier-1 suppliers, and universities would be informative as activity scales.
Built on Patsnap Open Platform
This report’s underlying patent dataset — filings, assignees, technology clusters — is open for developers via MCP and REST API. Free to start, 10,000 credits, no credit card required.
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.