Cable Insulation Materials Patents: Leaders & Filing Trends 2026
Cable insulation materials patents: who holds the ground and where it is still open
36.6% concentration at the top. The five leading assignees combined account for 964 of the 2,632 records in scope — a field where a handful of filers have staked out most of the crosslinked polyethylene and additive-stabilisation claim space. Filings ran from 87 records in 2017 to a peak of 130 in 2018, then eased; on the last complete three-year comparison, 2021's 38 records fell to 28 in 2024, a -26% move. 2025 and 2026 figures are still filling in under the publication lag and should not be read as a continued decline.
- 1DOW GLOBAL TECHNOLOGIES LLC10.8%
- 2BOREALIS AG10.1%
- 3GENERAL CABLE TECH CORP6.3%
- 4UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLC5.7%
- 5FUJIKURA LTD3.6%
See the full cable insulation materials 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 insulation materials patents
Who holds the most patents in cable insulation materials?
The assignee ranking in this dataset is led by a single filer with 285 records, well ahead of the fifth-place holder at 96 and the tenth-place holder at 60. The top five assignees combined account for 964 of the 2,632 records in scope, or 36.6% of the field, and the top ten extend that to 51.0%. This concentration is typical of a mature core chemistry where a small number of long-standing filers, largely in crosslinked polyethylene and silane-stabilisation chemistry, hold most of the foundational claims.
Is cable insulation patent filing activity growing or slowing?
Filing peaked at 130 records in 2018 and has since eased; on the last complete three-year comparison, the leading assignees’ filings moved from 38 records in 2021 to 28 in 2024, a -26% change. Because publication lags filing by roughly 18 months, the 2025 and 2026 figures in any trend chart are still incomplete and should not be read as confirming a continued decline. The honest read is a field that has cooled from a 2018 peak but has not stopped generating new filings.
What technology areas dominate cable insulation patent claims?
H01B, covering cables, conductors and insulators, appears in 65.4% of the 2,632 records in scope, making it the dominant classification by a wide margin. C08K, use of additives in polymers, and C08L, polymer compositions, follow at 38.1% and 34.8% respectively, and because a single record can carry multiple IPC codes these figures overlap rather than sum to 100%. The overlap itself is informative: it shows that insulation-layer structure and additive chemistry are frequently claimed together rather than in isolation.
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 Insulation Materials 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.