Subsea Cable Laying Patents: Who Leads, Where the Gaps Are 2026
Subsea Cable Laying and Protection Patents: Filing Trends and Leading Assignees
Filing rose 65% from 2021 to 2024, climbing from 17 to 28 records a year before the most recent, still-incomplete years. Filings moved from 5 in 2017 to a peak of 28 in 2024, including a 65% climb from 2021 (17) to 2024 (28). The 2025 and 2026 counts (down to 2 in the partial latest year) reflect publication lag, not a slowdown — treat any read of a falling trend from those years with caution.
- 1SENSTAR CORP10
- 2PRYSMIAN SPA10
- 3NYLACAST ENGINEERED PROD LTD9
- 4OCEANEERING INT SERVICES8
- 5RAYTHEON CO7
See the full subsea cable laying and protection 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 subsea cable patent activity
How many patents exist for subsea cable laying and protection?
This landscape identifies 203 published records filed between 2015 and mid-2026 that combine subsea cable laying or protection with a specific technical mechanism such as burial depth control, trenching tools or position monitoring. The count reflects a defined search scope rather than every patent that touches subsea cables in any way, so a broader or narrower query would return a different total. Because publication lags filing by roughly 18 months, the most recent one to two years are undercounted and should not be read as a slowdown.
Who are the leading patent holders in subsea cable protection?
The leading assignee in this dataset holds 10 of the 203 records, with the top 5 combined accounting for 21.7% of all records and the top 10 reaching 36.5%. That is a gradual slope rather than a single dominant player, and the ranking includes cable manufacturers, offshore service firms, sensor and defence companies, and individual inventors. The remaining filings are spread across a long tail of assignees with only a handful of records each.
What patent classes cover subsea cable burial and trenching?
The two most heavily represented IPC classes are H02G, covering installation of power and signal cables, at 25.6% of the 203 records, and E02F, covering excavating and earth-moving equipment, at 23.2%. Geophysics and surveying (G01V) and pipe-related classes (F16L) also carry meaningful shares. Records often carry more than one class, since a single filing can cover both the physical trenching mechanism and the cable itself.
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 Subsea Cable Laying and Protection 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.