Substation Cybersecurity Patents: Top Companies & Trends 2026
Substation Cybersecurity Patents: Who Leads and Where the Claim Space Is Still Open
33.9% concentration at the top. The five leading assignees together hold 908 of the 2,681 records in scope, so a handful of portfolios set the terms in role-based access and certificate management. Volume rose from 170 records in 2017 to a peak of 194 in 2018, then sustained a further growth phase that reached 193 records in 2024 — up 58% from 122 in 2021. The 2025 and 2026 figures (falling to 32 by 2026) reflect publication lag, not a real slowdown in filing.
- 1SOPHOS LTD23.3%
- 2VMWARE INC3.0%
- 3AS0001 INC2.9%
- 4INTERNATIONAL BUSINESS MACHINE CORPORATION2.4%
- 5JUNIPER NETWORKS INC2.2%
See the full substation cybersecurity 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 about substation cybersecurity patents
Who holds the most patents in substation cybersecurity?
One assignee leads the ranked field with 625 records, well ahead of the fifth-place holder at 58 and tenth place at 44. That gap is unusually wide, and it means a single portfolio has effectively set the baseline claim coverage for role-based access and related controls in this space. The top 5 assignees together hold 908 of the 2,681 records in scope (33.9%), so despite the wide lead at the very top, well over half the field remains outside the leading group.
Is patent filing in substation cybersecurity still growing?
Yes, through the last year that can be treated as complete. Filing rose from 122 records in 2021 to 193 in 2024, a 58% increase over that three-year span. The apparent fall in 2025 and 2026 is a publication-lag artefact — patent publication typically trails filing by around 18 months, so those recent years will keep revising upward as records are published.
What technology areas do these patents cover most?
The corpus skews heavily toward network and software-layer security: H04L (digital information transmission) appears in 70.2% of the 2,681 records and G06F (electric digital data processing) in 55.5%. Control and regulating systems, classified under G05B, appear in only 1.1% of records, indicating that most claimed inventions address IT-security mechanisms layered onto substations rather than changes to the operational control loop 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 Substation Cybersecurity 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.