Marine Electric and Hybrid Propulsion Patents: Leaders & Trends 2026
Marine electric and hybrid propulsion patents: who holds the claim space and where it is still open
Concentration is modest. the top 5 assignees hold 18.6% of the 901 records in scope and the top 10 hold 31.1% — a leader exists but the field is not locked up. Filings rose from 29 in 2017 to a peak of 104 in 2022, then eased to 61 by 2024 (a -12% change from 2021's 69). 2025 and 2026 figures are still low because publication typically lags filing by roughly 18 months — those bars will fill in as later filings publish, so they should not yet be read as a slowdown.
- 1HARMAN INT IND INC5.9%
- 2RTX CORP3.7%
- 3ROLLS ROYCE DEUT LTD & CO KG3.3%
- 4GENERAL ELECTRIC CO2.9%
- 5QUALCOMM INC2.9%
See the full marine electric and hybrid propulsion 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 about this landscape
Who are the leading patent filers in marine electric and hybrid propulsion?
The ranking covers 100 assignees counted by patent family, and the top-ranked filer holds 53 records out of 901 in scope, well ahead of the fifth-place holder at 26. However, the top 10 combined account for only 31.1% of all records, so most of the field sits outside the ranked leaders. This points to a market with one clear leader but a wide base of smaller filers, rather than a small group of firms controlling the space.
Is marine hybrid propulsion patent filing still growing?
Filing peaked at 104 records in 2022 and had eased to 61 by 2024, a -12% change from 69 in 2021. That is the most reliable trend statement available because 2024 is the most recent year with largely complete publication data. Figures for 2025 and 2026 look lower, but that is expected: publication typically lags actual filing by around 18 months, so those years will continue to fill in and should not be read as a decline yet.
What technology areas overlap most with marine electric propulsion patents?
The IPC composition shows B63H (marine propulsion & steering) at 22.4% of the 901 records, closely followed by B64D (aircraft equipment) at 21.2% and B60L (electric vehicle propulsion) at 20.3%. Because a single record can carry multiple IPC classes, these figures overlap rather than partition the dataset. In practice this means marine hybrid propulsion filings frequently sit in the same claim space as aerospace hybrid-power and automotive EV drivetrain patents, so prior art searches in this field should not stop at marine-specific classes.
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 Marine Electric and Hybrid Propulsion 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.