GaN DC-DC Converter Patent Snapshot 2026
The GaN DC-DC converter patent field is still expanding on a multi-year basis, with recent-window growth of 300% over the prior window, though annual volume has eased from its 2023 peak. Parker Hannifin Corp holds the dominant position, and the corpus remains tightly concentrated among a small group of new entrants.
Parker Hannifin leads a highly concentrated, early-stage corpus
Parker Hannifin Corp ranks first with 5 patent families, followed by Navitas Semiconductor and Southeast University each with 2 patent families. The remaining applicants each hold a single family.
The top five filers account for 79% of the ranked applicants visible in this query’ combined total, signaling extreme concentration for a field of this size. A clear tier gap separates Parker Hannifin from all other applicants.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Parker Hannifin Corp | 5 | |
| 2 | Navitas Semiconductor Ltd | 2 | |
| 3 | Southeast University | 2 | |
| 4 | Ajou Motor College Industry-Academic Cooperation Foundation | 1 | |
| 5 | INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN … | 1 | |
| 6 | Huangshan Ruixing Automobile Electronics | 1 | |
| 7 | Changsha Zhuye Electronic Technology Co. Ltd | 1 | |
| 8 | Tianjin University | 1 |
Parker Hannifin’s position as a motion and control technology company — rather than a pure semiconductor firm — suggests that system integrators are staking early claims, while dedicated GaN semiconductor players like Navitas Semiconductor are also entering the space.
The most recent 18–24 months of filings are under-counted due to publication lag; the corpus should be treated as a floor, not a ceiling, for current activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2023 filing spike dominates the trend; power conversion circuits account for nearly all activity
The annual filing trend and technology composition charts together show a field that accelerated sharply in 2023 and is anchored almost entirely in power conversion circuit IP.
Annual filing trend
Filings were sparse from 2017 through 2022, spiked to their highest recorded annual level in 2023, then eased in 2024 and 2025. The 2024 and 2025 bars should be read as understated due to publication lag — the true recent pace is likely higher than currently visible.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Power conversion (H02M) is visible in the corpus. Semiconductor device classes H10D and H01L, along with electric heating and lighting circuits (H05B), each appear at low levels, indicating that device-level and application-layer IP remains sparse relative to circuit-topology work.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Bidirectional isolated high voltage DC-DC converter
A bidirectional isolated high voltage DC-DC converter includes a primary three-level circuit, a capacitor-inductor-inductor-capacitor (CLLC) resonant tank network connected to the primary three-level circuit, a secondary three-level circuit connected to the CLLC resonant tank network, and a controller that controls one or more of the components of the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 一种分时复用硬件的自适应同步整流控制系统及控制方法 | 8 |
| 2 | Bidirectional isolated high voltage DC-DC converter | 3 |
| 3 | 用于LED车灯供电的高效率GaN电源模块 | 3 |
| 4 | Bidirectional isolated high voltage DC-DC converter | 2 |
| 5 | 一种分时复用硬件的自适应同步整流控制系统及控制方法 | 2 |
| 6 | Integrated GAN power devices including PFC and QR … | 1 |
| 7 | 反激开关电源和高频变换器 | 1 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Parker Hannifin Corp
Parker Hannifin Corp holds 5 patent families, all concentrated in H02M power conversion sub-classes (both H02M 1 and H02M 3), indicating a focus on converter topology and control circuitry rather than device-level GaN semiconductor design. Their momentum is classified as a new entrant, suggesting all filings are recent, consistent with the post-2022 acceleration in the corpus.
families: 5Navitas Semiconductor
Navitas Semiconductor holds 2 patent families and is the only ranked applicant with coverage across both power conversion (H02M 1 and H02M 3) and general semiconductor devices (H10D 62), reflecting their GaN integrated circuit product focus. Also classified as a new entrant by momentum data, their filing trajectory aligns with commercial GaN power IC product launches.
families: 2Frequently asked questions
The current corpus contains 14 patent families in scope. This is a small, early-stage dataset; the most recent 18–24 months are under-counted due to publication lag, so the true active total is likely higher.
Parker Hannifin Corp leads with 5 patent families, all in power conversion circuit classes. Navitas Semiconductor and Southeast University each hold 2 patent families, placing them in the second tier.
The field is in the Growth stage. Recent three-year filings exceed the prior three-year window by 300%, indicating multi-year expansion. Annual volume has eased from its 2023 peak, and publication lag means recent years are further understated.
China has the most patent records, followed by the United States and WIPO PCT. Europe (EPO), Brazil, and South Korea each account for one record. The China-first pattern reflects manufacturing and automotive electronics activity in that market.
No co-filing or collaboration relationships are present in the current evidence. All tracked applicants are filing independently, which is consistent with a young, fragmented competitive field.
The two sparsest adjacent branches are H01L (semiconductor device structures, 1 record) and H05B (electric heating and lighting circuits, 1 record). H01L represents a gap in device-level GaN IP, while H05B points to under-claimed application territory in automotive LED and heating systems.
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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.
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