Gate Drive & Short Circuit Protection Patents: Top Filers 2026
Gate Drive and Short Circuit Protection Patents for Power Modules
Concentrated but not locked up. the five most active filers hold 29.5% of all 706 records in scope, and the ten most active hold 42.4% — leaving well over half the field to a long tail of single- and low-volume filers. Volume ran at 51 records in 2017, its peak so far, and growth from 2021 (31) to 2024 (20) works out to -35% over that three-year span. Treat 2025 and 2026 as still-filling-in rather than a genuine drop-off, since publication typically lags filing by around 18 months.
- 1MITSUBISHI ELECTRIC CORP58
- 2MICROSEMI SOC CORP52
- 3BOE TECHNOLOGY GROUP CO LTD42
- 4KK TOSHIBA34
- 5GENERAL ELECTRIC CO22
See the full gate drive and short circuit protection for modules 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 this landscape
Who are the leading patent holders in gate drive and short circuit protection technology?
The dataset ranks 100 companies across 706 records, with the leading assignee holding 58 records against 22 at fifth place and 17 at tenth place. That gap shows a real leader but a shallow drop into the mid-field, so the next several filers are competitive rather than far behind. Across the ranked leaders as a group, the top 5 account for 29.5% of all 706 records and the top 10 account for 42.4%, leaving a substantial long tail of smaller filers active in the space.
Is filing activity in this field growing or shrinking?
Filing peaked in 2017 at 51 records and declined through 2024, the most recent year that can be treated as complete, with the 2021-to-2024 span showing a -35% change. The 2025 and 2026 figures in any dataset like this are still filling in, since publication typically lags actual filing by around 18 months, so they should not be read as a continuation of the decline. The honest read is a cooling from an earlier peak rather than an active, ongoing collapse.
What technology areas does gate drive and short circuit protection patent activity concentrate in?
Two IPC subclasses dominate: H03K, covering pulse technique and logic circuits, appears in 41.1% of all 706 records, and H02M, covering power conversion, appears in 36.8%. Semiconductor-device classes H01L and H10D follow at lower but still meaningful shares. Because a single record can carry multiple IPC classes, these percentages add up to more than 100%, which simply reflects that gate-timing and power-conversion claims are frequently bundled into the same filing.
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 Gate Drive and Short Circuit Protection for Modules 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.