Cable Termination Stress Control Patents: Leaders & Trends 2026
Cable Termination Stress Control Patents: Who Holds the Field Grading Claims
Concentrated at the top. The five leading assignees hold 111 of 224 records in scope (49.6%), and the top ten hold 173 (77.2%) — a narrow group controls most of the filed art here. Filings peaked at 16 records in 2017 and have declined since, reaching 7 in 2021 and 1 in 2024 — an 86% fall across that three-year window. Counts for 2025 and 2026 are not yet complete because publication typically lags filing by around 18 months, so the most recent years should not be read as a continued decline until later data arrives.
- 1NKT HV CABLES AB36
- 2ABB RES LTD24
- 3TE CONNECTIVITY SOLUTIONS GMBH23
- 43M INNOVATIVE PROPERTIES CO14
- 5PRYSMIAN SPA14
See the full cable termination stress control 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 cable termination stress control patents
What is stress control in cable terminations?
Stress control refers to the design features and materials that manage the electric field at the point where a high-voltage cable’s insulation is interrupted, such as at a termination, joint or stress cone. Without it, the field concentrates sharply at the interruption and causes partial discharge or eventual breakdown. Field grading materials and stress cones are the two main mechanical approaches, and both appear heavily across the 224 records in this dataset, with installation-related claims (H02G) covering 63.8% of them.
Who are the leading patent holders in cable termination stress control?
The ranking covers 64 assignees, with a clear leader holding 36 of the 224 records in scope and the top five combined holding 111 records (49.6%). Coverage then drops off steadily, with the top ten holding 173 records (77.2%) and a long tail of smaller filers below that. This is a concentrated field rather than a fragmented one, so a competitive review can focus on a short list of firms.
Has patent filing in this field slowed down?
Filing activity peaked in 2017 at 16 records and has declined since, falling from 7 records in 2021 to 1 in 2024, an 86% drop over that span. However, 2025 and 2026 figures are not yet complete because publication typically lags filing by about 18 months, so the most recent years understate true activity and should not be read as confirmation of a continuing decline on their own.
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 Cable Termination Stress Control 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.