Fastest
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/sic-mosfet-gate-driver-patent-landscape-patent-landscape/ · Patsnap · data cut-off 2026-08-31 · downloaded from the live page
Patent Landscape · Power ElectronicsSiC MOSFET gate driver patents: who leads and where the claim space is still open
A patent landscape analysis of SiC MOSFET gate driver technology: filing trends, leading assignees, IPC composition, and white space, covering 111 records from 2015 through 2026.
111
Published Records
37%
Top-5 Share of All Records
+225%
Filing Growth 2021→2024
CN
Leading Jurisdiction
Filing growth = 2021 (4 records) → 2024 (13); 2024 is the last year we treat as complete. Top-5 share = the 5 largest assignees ÷ all 111 records in scope (CR5), not the ranked leaders only.
Published byPatsnap Research··6 min readSourced from Patsnap Eureka
Overview
What the SiC MOSFET gate driver patent record actually shows
SiC MOSFET gate drivers sit at the intersection of power conversion and pulse-logic circuit design, and the patent record reflects that split: nearly every record touches H03K pulse-technique claims, while a smaller but substantial share also claims H02M power-conversion territory. That overlap is structural, not incidental — a gate driver claim almost always has to describe both the switching logic and the power stage it drives, which is why the two classes co-occur so heavily in this dataset.
Filing activity peaked in 2017 and has since rebuilt through a sharp 2021-to-2024 run, with the most recent one or two years understated because publication typically lags filing by around 18 months. Concentration at the top is moderate rather than extreme: the leading assignee holds 13 records, but the ranked field runs to 67 companies, and the top 10 combined account for just over half of all records in scope.
Filing trend and IPC composition, 2015–2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on SiC MOSFET Gate Driver Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Let an AI agent run this analysis on your own technology
Pick a task. Every answer cites the patents behind it.
10,000 free credits to start
The Data
Filing trend and technology composition
Two views of the same 111 records: how filing activity has moved year over year, and which IPC subclasses carry the claim weight.
Filing trend: a 2017 peak, then a 2021–2024 rebuild
Filings hit 15 in 2017, the high point of the tracked period, before easing back and then climbing sharply again — 2021's count of 4 grew to 13 by 2024, a +225% increase over that span. 2025 and 2026 figures are still filling in given typical publication lag, so the apparent tail-off in the newest years should not be read as a slowdown.
Publication lags filing by roughly 18 months, so 2025 onwards are still filling in. Growth rates on this page therefore end at 2024; running them to the last bar would understate the field.
IPC composition: pulse-logic claims dominate
H03K (pulse technique and logic circuits) appears in 82.9% of the 111 records, far ahead of H02M power conversion at 36.9%. Smaller classes — H03F amplifiers, H10D semiconductor devices, H05K assembly, H02H protection and H02J power supply — each sit under 11%, and the ones below 2% mark territory that is claimed only lightly relative to the core gate-drive logic.
Shares are the percentage of the 111 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on SiC MOSFET Gate Driver Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.
Go deeper on SiC MOSFET Gate Driver Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about sic mosfet gate driver patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaKey Patents
Representative filing and most-cited prior art
Representative Record
Multi-level gate driver applied to SiC MOSFET
UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
Filed by University of Electronic Science and Technology of China, this record describes a gate driver built from three linked subsystems: a SiC MOSFET information detection circuit covering drain-source voltage and current sensing, a signal level shifting circuit, and a segmented driving circuit split into separate turn-on and turn-off stages. The detection circuit's outputs feed the segmented stages so that switching behaviour can be adjusted based on measured device state during turn-on and turn-off transitions.Filed 2023-10-12 · illustrates the trend toward sensing-integrated, multi-stage drive rather than a single fixed drive waveform.
Most-cited records in the dataset
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US7570085B2 | Gate driver circuit for switching device | 42 |
| 2 | WO2013011289A2 | Switching circuits | 34 |
| 3 | US20070200613A1 | Gate driver circuit for switching device | 30 |
| 4 | US20100265746A1 | Drive circuit of semiconductor device | 22 |
| 5 | CN113872420A | 一种抑制SiC—MOSFET桥臂串扰的改进门极驱动电路 | 14 |
| 6 | WO2015132835A1 | Power conversion apparatus | 12 |
| 7 | EP2242179A1 | Drive circuit of semiconductor device | 12 |
| 8 | CN115037129A | 一种基于SiC MOSFET并联均流的控制电路 | 11 |
| 9 | CN113067567A | 超高压绝缘隔离SiC MOSFET栅驱动电路 | 11 |
| 10 | US20210203309A1 | Methods and apparatus for transistor health monitoring | 11 |
Citation counts favour older filings inside any searched corpus — treat this table as a map of influential prior art, not a ranking of current-generation designs.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on SiC MOSFET Gate Driver Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Run it yourself
Put your own technology through the same analysis
Where to run it
For builders
MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →Insights
What the numbers mean for a filing or freedom-to-operate decision
Four read-throughs from the assignee, geography and technology data that matter for a practical next step.
Concentration
36.9%
of 111 records held by the top 5 assignees
No single company controls the field
The leading assignee holds 13 records out of 111, and the top 5 combined reach only 36.9% of all records in scope. With 67 companies in the ranked field, this is a landscape with a moderate leading group and a long tail of single- and few-filing entrants rather than one or two dominant blockers.
Ranked field: 67 companies, counted in records.
Growth
+225%
filing growth, 2021 to 2024
Activity rebuilt sharply after a 2017 peak
Filings peaked at 15 in 2017, cooled, then climbed from 4 in 2021 to 13 in 2024 — a +225% increase over that three-year span. Because publication lags filing by roughly 18 months, the softer-looking 2025–2026 counts understate real filing activity rather than signalling a real decline.
Peak year: 2017 at 15 filings.
Claim geography
82.9%
of records carry an H03K pulse-logic claim
Pulse-logic claims dominate the claim space
H03K appears in 82.9% of the 111 records, well ahead of H02M power-conversion claims at 36.9%. Classes such as H02H protection and H02J power supply sit at 1.8% each, marking areas where the drive-logic core is heavily claimed but adjacent protection and supply integration is not.
A record can carry multiple IPC classes, so shares exceed 100% in total.
Filing geography
36
China-received filings, the largest single office
China leads receiving offices, ahead of a multi-jurisdiction spread
China accounts for 36 filings, more than the United States (23), WIPO/PCT (13) and Europe (10) combined receiving-office counts individually. Germany and India each register single-digit-to-low-double-digit counts, suggesting most applicants are not yet pursuing dense multi-region protection outside their home jurisdiction.
Receiving offices: CN 36, US 23, WIPO 13, EP 10, IN 9, DE 4.
Eureka AI Agent
Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to sic mosfet gate driver patent landscape, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on SiC MOSFET Gate Driver Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is filing strategy, freedom-to-operate, or competitor tracking.
Map the white space in protective and supply-integration claims
H02H and H02J each sit under 2% of records despite being natural adjacencies to gate-drive logic — a candidate area for a first claim rather than a crowded one.
Explore white space in EurekaTrack the long tail of few-filing entrants
With 67 companies ranked and the top 10 covering only about half of all records, new entrants are still establishing position; watching this list quarter over quarter is more informative than watching the leader alone.
Set up assignee trackingRe-run the citation view before committing to a design
The most-cited records skew toward older filings; validate against recent publications before treating any single citation count as current-state prior art.
Open the citation tableSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on SiC MOSFET Gate Driver Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Frequently asked questions
The dataset ranks 67 companies by filing count, with the leading assignee holding 13 of the 111 records in scope. The top 5 combined account for 36.9% of all records and the top 10 for 50.5%, which means the field has a moderate leading group rather than a single dominant player. A long tail of companies with only one or two filings each makes up the majority of the ranked list, so competitive tracking should not stop at the top few names.
Filings grew sharply from 4 in 2021 to 13 in 2024, a +225% increase over that span, after an earlier peak of 15 filings in 2017. The apparent drop in 2025 and 2026 counts is an artefact of publication lag, since patent publication typically trails the actual filing date by around 18 months. Read the 2021–2024 trend as the most reliable recent signal, not the tapering final years.
H03K, covering pulse technique and logic circuits, appears in 82.9% of the 111 records in scope, making it the dominant claim category by a wide margin. H02M power-conversion claims follow at 36.9%, and smaller classes like H03F amplifiers and H10D semiconductor devices sit in the 6-11% range. Because a single record can carry multiple IPC classes, these shares add up to more than 100% and should be read as claim density rather than an exhaustive breakdown.
Protective circuit arrangements (H02H) and power supply/grid integration (H02J) each appear in only 1.8% of the 111 records, well below the core pulse-logic and power-conversion classes. That gap suggests the fundamental switching-logic space is heavily claimed while integration with protection and supply-side circuitry is comparatively open. Any first claim aimed at this territory should be checked against the most-cited prior art before drafting, since a handful of older records still anchor the space.
China is the largest single receiving office with 36 filings, ahead of the United States at 23, WIPO/PCT filings at 13, and the European Patent Office at 10. India and Germany trail with single-digit-to-low-double-digit counts. The spread indicates most applicants are filing at home first and pursuing selective international protection rather than filing broadly across every major jurisdiction.
Answers are grounded in the same dataset. Derived from a Patsnap search on SiC MOSFET Gate Driver Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Research SiC MOSFET Gate Driver Patent Landscape in depth with Eureka
Go past this page: query the whole sic mosfet gate driver patent landscape corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.