GaN Power Thermal Management Patent Snapshot 2026
GaN Systems dominates a small but concentrated corpus of 8 patent families, holding the leading position among all filers. Filing activity was negligible through 2021, then accelerated sharply from 2022 onward, signaling that serious patent-building in GaN power thermal management is only just beginning.
GaN Systems leads a nascent, highly concentrated field
GaN Systems holds the top position with 3 patent records, placing it well ahead of a tier of ten applicants each holding a single record. This concentration is pronounced for such a small corpus.
The top five filers account for 54% of the combined total among the ranked applicants visible in this query, confirming that a handful of players have moved first and most decisively in staking out this space.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | GaN Systems Inc. | 3 | |
| 2 | Nippon LSA Inc. | 1 | |
| 3 | POWDEC K.K. | 1 | |
| 4 | Xidian University | 1 | |
| 5 | Apple Inc. | 1 | |
| 6 | Infineon Technologies Austria AG | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 7 | Infineon Technologies Canada Inc. | 1 | |
| 8 | Institute for Energy Application Technology Co., Ltd. | 1 | |
| 9 | Shaanxi Junpu Xinhang Technology Co., Ltd. | 1 | |
| 10 | Kuwata Co., Ltd. | 1 | |
| 11 | Xi’an University of Technology | 1 |
The leader’s advantage is primarily technical: GaN Systems’ filings cluster around semiconductor device packaging (H01L 23) and printed-circuit assembly (H05K 1 and H05K 7), pointing to a systems-level, integration-focused thermal strategy rather than a narrow device-level one.
Filing counts for the most recent 18–24 months are likely under-represented due to standard patent publication lag; the apparent sparsity of 2024–2025 activity should not be read as a slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity compressed into 2022–2025 after a multi-year dormancy
Two charts together reveal a field that was largely idle before 2022 and is now attracting a diverse mix of device specialists, system integrators, and academic institutions. The technology mix is narrow but beginning to broaden.
Annual filing trend
A single filing in 2017 was followed by four years with no recorded activity. Volume jumped to one in 2022, then four in 2023, and two in 2025, tracing a clear inflection. The 2024 and 2026 zeros reflect publication lag and should not be read as real pauses.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) is visible in with 9 patent records, followed by H05K (Printed circuits and assemblies) at 5. H10D and H10W each appear twice, and H02J (Power supply and grid systems) appears once — the latter representing the most under-served adjacent branch in the current mix.
↗ 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.
Thermal management solution for power stage compri…
A power stage assembly for improved thermal dissipation and EMC for top-cooled semiconductor power switching devices, e.g. high voltage, high current lateral GaN power transistors in embedded die packages. The power switching devices are mounted on a PCB substrate, with electrical connections between a bottom side of each device package and the PCB. Each… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Electric storage module and electric storage modul… | 13 |
| 2 | Top side cooling for GaN power device | 7 |
| 3 | 针对包括顶部冷却功率半导体开关器件的功率级的热管理方案 | 1 |
| 4 | Thermal management solution for power stage compri… | 1 |
| 5 | INTEGRATED GaN POWER MODULE | 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.
GaN Systems
GaN Systems holds 3 patent records — the largest position in the corpus — with filings concentrated in H01L 23 (semiconductor device packaging), H05K 1, and H05K 7 (printed circuit assemblies). This multi-class spread indicates a systems-integration approach to GaN thermal management rather than a single-device focus. Momentum is flagged as a new entrant in the recent window, suggesting its filing program is still in an active build phase.
patent records: 3Apple Inc.
Apple holds 1 patent record, focused on H01L 23 (semiconductor device packaging), and is also classified as a new entrant in the recent filing window. Apple’s entry into GaN thermal management IP is consistent with its published transition to GaN-based power adapters and points toward proprietary thermal solutions for consumer power electronics.
patent records: 1Frequently asked questions
The corpus analyzed contains 8 patent families in scope. It is a small, emerging field with concentrated ownership among a limited number of filers.
GaN Systems holds the leading position with 3 patent records, ahead of ten other applicants each holding a single record.
The United States leads with 5 patent records, followed by China with 3 and WIPO (PCT) with 1, based on the jurisdiction breakdown in the evidence.
H01L (Semiconductor devices) is the most represented class with 9 patent records, followed by H05K (Printed circuits and assemblies) at 5. H10D, H10W, and H02J each carry 2 or fewer records.
Yes. A four-party Japanese consortium — Institute for Energy Application Technology, Kuwata Co., POWDEC, and Nippon LSA — co-files across multiple pairs. A separate Chinese collaboration links Shaanxi Junpu Xinhang Technology with Xidian University.
H02J (Power supply and grid systems) holds only 1 patent record, representing 5% of the IPC distribution. H10W (Wide-bandgap device structures) also has only 2 records. Both branches have plausible technical relevance to GaN thermal management and carry limited incumbent competition at present.
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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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