Wind-Assist Sail Control & Routing Patent Snapshot
The wind-assist sail control and routing patent corpus is extremely small, with activity concentrated almost entirely in a single burst in 2022. Korea Institute of Ocean Science & Technology dominates the field, and the limited number of applicants signals an early-stage, lightly contested space.
A highly concentrated field dominated by a single public research institute
The top-ranked applicant, Korea Institute of Ocean Science & Technology, holds the clear leadership position in this corpus, ahead of the only other identified filer, Magnus Rotor Solar Systems.
The top five filers account for the entirety of the ranked applicants visible in this query’ combined total — a concentration level that reflects both the niche nature of the technology and the very early stage of patenting activity.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY | 6 | |
| 2 | Magnus Rotor Solar Systems | 1 |
The dominance of a single public research institute, rather than a commercial shipbuilder or propulsion OEM, suggests that fundamental research rather than commercial product development is currently driving IP creation in this space.
The most recent filing periods should be treated with caution given typical patent publication lags of 18–24 months; the apparent absence of activity after 2022 may partly reflect documents not yet published. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single-year filing spike in 2022 and a technology mix anchored in marine propulsion
The annual trend and technology composition together describe a field that has seen one identifiable burst of patenting activity, almost entirely within a single IPC class.
Annual filing trend
All recorded activity was filed in 2022; years before and after show no filings in this corpus. The 2023–2026 window should be interpreted cautiously given publication lag — additional documents may yet appear.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Marine propulsion and steering (B63H) accounts for the visible share of patent records, with ship auxiliaries (B63J) representing a smaller adjacent branch. The narrow IPC spread confirms that filing has focused tightly on core propulsion mechanics rather than broader system integration.
↗ 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.
Rotor sail and ship with a rotor sail
A rotor sail is provided having a base (<b>2</b>) and a rotary cylinder (<b>3</b>) mounted on the base (<b>2</b>) in a manner permitting rotation about its longitudinal axis designed as the rotor axis (r), and a drive (<b>5</b>) for rotating the rotary cylinder (<b>3</b>). An enclosing outer surface (<b>4</b>) of the rotary cylinder serves as a wind-exposed… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Rotor sail and ship with a rotor sail | 39 |
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.
Korea Institute of Ocean Science & Technology
Entered this specific topic as a new entrant (trend: new entrant) with all activity concentrated in 2022. Their technology emphasis is entirely within B63H (marine propulsion and steering), indicating a focused research program on sail-assisted propulsion mechanics rather than broader ship-systems integration. With 6 patent families, they define the current state of the art in this corpus.
families: 6Magnus Rotor Solar Systems
Holds 1 patent family and is the only commercial-adjacent filer in the corpus. Their coverage spans both B63H (marine propulsion) and B63J (ship auxiliaries), suggesting a broader system-level perspective than the leader. No momentum data beyond a single family is available; their trajectory in this specific topic remains unclear.
families: 1Frequently asked questions
The current corpus contains 6 patent families in scope. This is a very small corpus, indicating the topic is at an early and lightly patented stage of development.
Korea Institute of Ocean Science & Technology is the top-ranked applicant, holding the largest share of patent families in the corpus. Magnus Rotor Solar Systems is the only other identified filer.
All recorded activity was concentrated in 2022. No filings appear in the years before or after within this corpus, though publication lag means post-2022 documents may not yet be fully visible.
The United States leads in patent-record count, followed by Europe (EPO), with individual national records in Austria and Finland. No Asian filing jurisdictions beyond the originating country appear in the corpus.
Marine propulsion and steering (B63H) is the visible IPC class, accounting for nearly all patent records. Ship auxiliaries (B63J) represents a minor adjacent branch with a single record.
No co-applicant or collaborative filing relationships are recorded in the current corpus. All identified filing has been conducted by individual applicants independently.
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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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