Electrical Protection Patents: Who Leads, Where the Gaps Are 2026
Electrical protection and reliability patents: who holds the ground and where filings are heading
Concentrated but not locked up. the top 5 assignees hold 17.1% of all 2,200 records in scope and the top 10 hold 27.0% — leadership exists but the field is not owned by a handful of firms. Filings peaked in 2017 at 115 records. Using the last confirmed full years, 2021 filings of 94 fell to 35 by 2024, a 63% decline over that three-year span. Years from 2025 onward are still filling in under publication lag and should not be read as a continued decline.
- 1SCHNEIDER ELECTRIC IND SAS5.6%
- 2EATON INTELLIGENT POWER LTD3.1%
- 3TECHHOLD LLC2.9%
- 4ABB AB2.9%
- 5EMPRIMUS LLC2.6%
See the full electrical protection & reliability patent landscape 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 electrical protection and reliability patents
Who are the leading patent holders in electrical protection and reliability technology?
The ranking covers 100 assignees, with a single leader holding 124 records well ahead of the fifth-placed firm at 58 and tenth place at 40. The top 5 assignees combined account for 17.1% of the 2,200 records in scope, and the top 10 combined account for 27.0%. That leaves the majority of filings spread across a long tail of smaller and single-filing entrants, so no one company controls the field outright.
Is patent filing in electrical protection and reliability growing or slowing down?
Filings peaked in 2017 at 115 records and have declined since. Comparing the last two confirmed full years, filings dropped 63% from 94 in 2021 to 35 in 2024. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so those years should not yet be read as confirming a continued decline.
Which technology areas carry the most patent claims in this space?
H02H, protective circuit arrangements, is the largest class by a wide margin at 38.5% of the 2,200 records. H01H switches and relays follows at 16.4%, and H02J power supply and grid systems at 14.2%. Because a single record can carry multiple IPC classes, these percentages add up to more than 100%, and they signal claim density rather than technology maturity.
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 Electrical Protection & Reliability Patent Landscape covering 2015–2026, data cut-off 2026-08-31. 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.