Electric Propulsion Motors for Aircraft Patents: Leaders & Trends 2026
Electric Propulsion Motors for Aircraft: Patents, Leading Filers and Where Claim Space Is Still Open
63.8% of the field sits with five filers. The top 5 assignees combined account for 67 of the 105 records in scope — this is a concentrated field, not a fragmented one. Filings rose to a peak of 23 in 2022 before falling to 3 by 2024, a -73% change from 2021's 11 filings; because publication lags filing, the 2025-2026 figures should not yet be read as a continued decline.
- 1HAMILTON SUNDSTRAND CORP33
- 2AMERICAN SUPERCONDUCTOR CORP15
- 3ATLAS COPCO AIRPOWER NV8
- 4ATLAS COPCO IND TECHNIQUE AB INTELLECTUAL PROPERTY DEPARTMENT7
- 5RTX CORP4
See the full electric propulsion motors for aircraft analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions on this landscape
Who holds the most patents in aircraft electric propulsion motors?
One assignee leads clearly with 33 of the 105 records in scope, roughly a third of the entire dataset. The top 5 assignees combined hold 67 records, or 63.8% of all records, and the top 10 combined reach 81.0%. This means the field is concentrated among a short list of filers rather than spread evenly across many small players.
Is patent filing for aircraft electric motors growing or slowing?
Filings peaked at 23 in 2022, then fell to 3 by 2024, a -73% change over that three-year span. However, publication typically lags filing by around 18 months, so the 2025 and 2026 figures are still incomplete and should not be read as confirmation of a continued decline. The honest read is that 2022 was a filing peak and post-2022 volumes are cooling, pending later data.
What technology areas do these patents actually cover?
Almost all records, 99.0% of the 105 in scope, carry the core H02K electric motors and generators classification. The next largest class is B64D, aircraft equipment, at 21.0%, indicating that most filings focus on motor internals rather than airframe integration. Smaller classes covering conductors and insulators, gas-turbine plants, jet propulsion and solid-state devices each appear in under 8% of records, marking narrower but potentially less contested sub-areas.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Electric Propulsion Motors for Aircraft covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.