Marine & Offshore Engineering Patents: Leaders & White Space 2026
- Filings are not concentrated in a handful of hands. The leader holds 30 records and the top 5 combined account for just 16.8% of all 577 records in scope — this is a field with a long tail, not a duopoly.
- Ships and propulsion dominate the claim map. B63B (ships & marine vessels) covers 26.9% of records and B63H (marine propulsion & steering) another 13.7%, while alloy and heat-treatment classes (C22C, C21D) show steel and materials work is a parallel, well-populated track.
- Growth is real but recent years understate it. Filings rose from 20 in 2021 to 23 in 2024, a 15% increase over that span — publication lag means 2025-2026 counts will climb once the backlog reports in.
Filing growth compares 2021 (20 records) with 2024 (23) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 577 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks 577 published records at the intersection of marine and offshore engineering — naval architecture, marine propulsion, alternative marine fuels, offshore platforms, marine autonomy, port infrastructure, shipbuilding and offshore operations. The search string was built to pull technical documents that name these areas directly, rather than every patent that happens to mention a ship or a platform in passing.
Filing activity runs from 2015 through the 2026 cut-off, with a peak year so far in 2018 at 33 filings. Receiving-office data shows the United States as the largest single office in scope, followed by the EPO, WIPO's PCT route, the UK, India and Australia — a spread that points to a genuinely international filing strategy rather than a single home jurisdiction driving the numbers.
Filing trends and technology mix
Two views of the same 577 records: how filing volume has moved year over year, and how the technology falls across IPC subclasses.
A field with a real but understated growth curve
Filings ran from 28 in 2017 to a peak of 33 in 2018, then settled into a range that reached 20 in 2021 and 23 in 2024 — a 15% rise over that three-year span. 2025 and 2026 show fewer records, but that reflects publication lag of roughly 18 months rather than a slowdown; filings made in those years are still being published.
Ships and propulsion lead, but materials science runs close behind
B63B (ships & marine vessels) accounts for 26.9% of the 577 records in scope and B63H (marine propulsion & steering) for 13.7%. Alloys (C22C, 10.7%) and heat treatment of metals (C21D, 7.1%) together show that steel and materials formulation for hulls, platforms and structural components is a substantial parallel track to vessel and propulsion design itself. Hydraulic and waterway engineering (E02B, 5.4%), foundations and earth drilling (E02D, 4.9%), digital data processing (G06F, 4.0%) and well drilling (E21B, 3.6%) round out a technology mix that spans hardware, structural materials and control software.
Shares are the percentage of the 577 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Marine & Offshore Engineering Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about marine & offshore engineering patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaA representative record in this landscape
785 MPa level extra-thick quenched and tempered rack steel plate for offshore platforms
The filing discloses a low-carbon, high nickel-chromium-molybdenum alloyed and niobium-vanadium-titanium microalloyed steel plate for offshore platform rack applications, with a specified chemical composition by weight percentage and a yield strength of 795 MPa or greater.Composition and heat-treatment claims of this kind sit inside the C22C/C21D alloy and heat-treatment classes that together cover close to a fifth of records in scope.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20130073387A1 | System and method for providing educational related social/geo/promo link promotional data sets for end user … | 666 |
| 2 | US20020035495A1 | Method of providing maintenance services | 351 |
| 3 | US4010619A | Remote unmanned work system (RUWS) electromechanical cable system | 288 |
| 4 | US7269569B2 | Method of providing maintenance services | 161 |
| 5 | US4858146A | Automated design of structures using a finite element database | 145 |
| 6 | US20050099010A1 | Wave energy conversion system | 141 |
| 7 | US7199481B2 | Wave energy conversion system | 120 |
| 8 | US7298054B2 | Wave energy conversion system | 111 |
| 9 | US5653404A | Disc-shaped submersible aircraft | 111 |
| 10 | US3872819A | Wave-actuated horizontal array stretcher | 106 |
Citation counts reflect influence within the searched corpus and favour older, more-cited documents — treat them as a signal of prior influence, not current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the data means for filing strategy
Four read-outs from the record set, aimed at where to file, who to watch, and what claim space is still contestable.
No single filer controls the field
The leading assignee holds 30 records, and the top 5 combined reach only 16.8% of all 577 records in scope. Even the top 10 combined reach 27.2%. That leaves the large majority of filings spread across a long tail of single- and few-filing entrants — a structure that rewards a freedom-to-operate search over assumptions about a dominant blocking portfolio.
Vessel and propulsion claims are the densest ground
Ships and marine vessels (B63B) and marine propulsion and steering (B63H) together touch a substantial share of the record set, meaning any new hull, structural or propulsion claim is filing into already-dense prior art. Adjacent classes — hydraulic engineering, foundations, drilling and digital processing — carry noticeably lighter counts.
Growth is steady, not surging
Filings moved from 20 in 2021 to 23 in 2024, a 15% rise over three years. That is measured growth rather than a spike, consistent with a mature field adding incremental claims rather than one undergoing a technology shift.
Joint filing is rare, and where it exists it is narrow
Only four co-assignee pairings appear in the record set, and the strongest pairing recurs six times. Co-filing is not the norm in this field — most records carry a single assignee, which again supports a fragmented rather than alliance-driven competitive structure.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to marine & offshore engineering patent landscape, with the prior art for and against each one.
Who is filing, and where activity has gone quiet
The ranking covers 100 companies, counted in records. Read it as a map of who has filed, not a definitive top-tier list — the top 5 combined hold only 16.8% of all 577 records in scope, so most of the ranking sits in single or low-single-digit filing counts.
A leader without a lock on the field
The top-ranked assignee holds 30 records, well ahead of fifth place at 14 and tenth place at 11. That gap shows real leadership in filing volume, but the leader's share of all 577 records in scope is still modest set against the size of the long tail behind it.
Several established filers show no recent-year activity
A number of the assignees with meaningful historical filing counts show zero records in the latest tracked year. That does not necessarily mean withdrawal from the field — publication lag means recent filings from any assignee may simply not have published yet — but it is worth checking directly before assuming continued activity.
A US-anchored but genuinely multi-jurisdiction field
The United States accounts for the largest single share of receiving-office records at 181, with the EPO, WIPO's PCT route, the UK, India and Australia all showing meaningful counts. That spread suggests filers in this space are pursuing multi-jurisdiction protection rather than relying on a single home office.
| Assignee | Recent year | YoY |
|---|---|---|
| TAS Global | 0 | — |
| POSCO | 0 | — |
| Gibbs Technologies | 0 | — |
| RE VISION CONSULTING LLC | 0 | — |
| Shell Internationale Research Maatschappij BV | 0 | — |
| WAJNIKONIS KRZYSZTOF JAN | 0 | — |
| Baoshan Iron & Steel Co., Ltd. (Baosteel) | 0 | — |
| OPE INC | 0 | — |
Where to take this analysis
The dataset points to specific next questions rather than a single conclusion. These are the ones worth running down first.
Check freedom-to-operate against the long tail, not just the leader
With the top 5 holding only 16.8% of 577 records, a freedom-to-operate search that stops at the largest assignee will miss most of the relevant art. The long tail needs its own pass.
Run a freedom-to-operate search in EurekaVerify recent-year momentum before assuming exits
Zero latest-year filings for a historically active assignee could reflect publication lag rather than a real exit. Confirm status before deprioritising a competitor.
Track assignee activity in EurekaScope claims against the alloy and heat-treatment cluster
C22C and C21D together represent a substantial, materials-focused claim track running alongside vessel and propulsion filings. Draft claims should be checked against this cluster specifically, not just the B63B/B63H core.
Explore the technology map in EurekaCommon questions about this landscape
The ranked leader holds 30 records, with fifth place at 14 and tenth place at 11, out of a 100-company ranking drawn from 577 records in scope. The top 5 filers combined account for 16.8% of all records, and the top 10 combined reach 27.2% — a concentration level that shows real leadership at the very top but a long tail behind it. This means no single company controls freedom-to-operate risk in this field; a competitive check needs to look well past the top few names.
Ships and marine vessels (IPC class B63B) is the largest single category at 26.9% of the 577 records in scope, followed by marine propulsion and steering (B63H) at 13.7%. Alloys and heat treatment of metals (C22C and C21D) together form a substantial materials-science track running in parallel, relevant to hull and platform structural components. Because records often carry more than one IPC class, these shares add up to more than 100%, and they should be read as a density map rather than a strict breakdown of the field.
Filings rose from 20 in 2021 to 23 in 2024, a 15% increase over that three-year span, which points to steady rather than explosive growth. The apparent dip in 2025 and 2026 numbers is not a real slowdown — patent publication typically lags filing by around 18 months, so the most recent one to two years in any dataset will always look thinner than they eventually turn out to be. 2024 is the most recent year that can be treated as a complete count.
Relative to the dense B63B and B63H core, classes covering hydraulic and waterway engineering (E02B, 5.4%), foundations and earth drilling (E02D, 4.9%), digital data processing (G06F, 4.0%) and well drilling (E21B, 3.6%) carry meaningfully lower filing density. That does not guarantee an easy claim — it means fewer competing filings currently occupy that specific claim space. Marine autonomy control software and alternative marine fuel storage systems, both drawn from these lighter-filed branches, are worth a first look for anyone seeking room to file a distinct claim.
With the top 5 assignees holding only 16.8% of the 577 records in scope and the top 10 holding 27.2%, this field reads as fragmented rather than concentrated. Co-assignee filing is also rare: only four co-assignee pairings appear across the entire dataset, and the strongest recurs just six times. Taken together, this points to a competitive landscape built from many independent filers rather than a small number of dominant portfolios or filing alliances.
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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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.