GaN Substrate & Gallium Supply Patent Landscape 2026
GaN Systems dominates a compact, highly concentrated field where the top five filers account for 42% of the hundred largest filers’ combined total, with the United States as the overwhelmingly dominant filing jurisdiction. Annual volume has plateaued near its 2020 peak, signaling a maturing competitive landscape where differentiation is shifting toward packaging, power conversion, and crystal-growth adjacencies.
GaN Systems leads a concentrated field with a clear tier gap
GaN Systems holds the top position by a substantial margin, accumulating 22 patent records — more than three times the next-ranked filer. Huawei Technologies and Tagore Technology follow at 7 and 6 patent records respectively, with NXP USA and STMicroelectronics (Tours) each at 6 and 5.
The top five filers together account for 42% of the hundred largest filers’ combined total, reflecting a field where a single specialist firm and a handful of large-company challengers shape the technical agenda. The gap between the leader and the second tier is large enough to represent a durable positional advantage.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | GaN Systems Inc. | 22 | |
| 2 | Huawei Technologies Co., Ltd. | 7 | |
| 3 | Tagore Technology Inc. | 6 | |
| 4 | NXP USA Inc. | 6 | |
| 5 | STMicroelectronics Appl. GmbH | 5 | |
| 6 | STMicroelectronics (Tours) SAS | 5 | |
| 7 | HUANG CHIH SHU | 5 | |
| 8 | Chengdu Hiwafer Semiconductor Co., Ltd. | 3 | |
| 9 | Jiangsu Ganlin Intelligent Systems Co., Ltd. | 3 | |
| 10 | Efficient Power Conversion Corporation | 3 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Wuxi Jingkai Technology | 3 | |
| 12 | SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CH… | 2 | |
| 13 | LIU YAN FEI | 2 | |
| 14 | Raytheon Company | 2 | |
| 15 | NG WAI TUNG | 2 | |
| 16 | Nanjing Shengxin Semiconductor Materials Co., Ltd. | 2 | |
| 17 | Nanjing Guosheng Electronics | 2 | |
| 18 | GaNPower International Inc. | 2 | |
| 19 | The Board of Regents of the University of Oklahoma | 2 | |
| 20 | Jiangsu Gallium Grand Semiconductor Co., Ltd. | 2 |
GaN Systems’ concentration in semiconductor device structures (H01L 29 and H01L 23) suggests its IP fence is built around core HEMT architecture and packaging rather than peripheral applications — making those adjacencies comparatively more open for new entrants.
Filing counts for 2024–2026 are subject to publication lag and should be treated as provisional minimums rather than indicators of declining activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume has plateaued; semiconductor device classes dominate the mix
The annual filing trend and technology-class composition together reveal a field that expanded through 2020–2023 and has since stabilized, while the IPC distribution shows heavy concentration in core semiconductor device classes with thin coverage in power-conversion and crystal-growth branches.
Annual filing trend
Filings rose from 8 in 2017 to a peak of 11 in 2020, held near that level through 2022–2023, then fell to 4–5 in 2024–2025. The 2024–2025 figures are under-counted due to patent publication lag and should not be read as a confirmed decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) commands the largest share of IPC-tagged records by a wide margin, followed by H10D and H10W. Adjacent classes such as H02M (Power conversion), H05K (Printed circuits and assemblies), and C30B (Crystal growth) each account for only a small fraction of records, marking them as comparatively sparse branches relative to the dominant semiconductor-device core.
↗ 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.
HYBRID TYPE AlGaN/GaN HEMT DEVICE
The present invention relates to a structure of hybrid type AlGaN/GaN high electron mobility transistor (HEMT) Device, which comprises a silicon substrate structure, and both of a depletion-mode (D-mode) AlGaN/GaN HEMT and a p-GaN gate enhancement-mode (E-mode) AlGaN/GaN HEMT disposed on the silicon substrate structure. By connecting the depletion-mode… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | III-Nitride High Electron Mobility Transistor Stru… | 98 |
| 2 | EMBEDDED PACKAGING FOR DEVICES AND SYSTEMS COMPRIS… | 78 |
| 3 | PACKAGING SOLUTIONS FOR DEVICES AND SYSTEMS COMPRI… | 70 |
| 4 | High-Power Electronic Device Packages and Methods | 57 |
| 5 | High performance radio frequency switch | 44 |
| 6 | Power switching systems comprising high power e-mo… | 35 |
| 7 | ENHANCEMENT MODE GaN HEMT DEVICE WITH GATE SPACER … | 32 |
| 8 | Enhancement mode GaN HEMT device with gate spacer … | 32 |
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.
What the patent structure means for R&D investment decisions
The combination of lifecycle stage, applicant concentration, collaboration patterns, and jurisdiction distribution shapes where defensive moats are strongest and where entry costs are lower.
Field at plateau — core HEMT architecture is densely covered
The lifecycle evidence indicates annual filings have plateaued near their 2020 peak, consistent with a maturing technology. Core HEMT device structures and standard packaging configurations carry the heaviest claim density. New R&D investment aimed at replicating existing structural approaches faces a high freedom-to-operate burden; differentiation requires moving toward adjacent application spaces or process innovations not yet heavily patented.
Maturity stageSingle-firm dominance with a reachable challenger tier
GaN Systems holds 22 patent records, more than three times Huawei’s 7. The tier below — Tagore Technology, NXP USA, STMicroelectronics — clusters between 5 and 6 records each, suggesting that the challenger position is contestable. Firms targeting the challenger tier must differentiate by technology branch rather than volume, given the leader’s structural head start.
High concentrationIntra-group co-filing dominates; limited cross-firm collaboration
The most active co-filing relationships observed are between STMicroelectronics (Tours) and STMicroelectronics Appl. GmbH (3 joint records) and between STMicroelectronics (Tours) and STMicroelectronics S.p.A. (DE) (2 joint records). These are intra-group coordination rather than external partnerships. No cross-firm or industry-academia collaboration pairs appear in the evidence, suggesting the ecosystem has not yet formed the joint-development arrangements common in more mature supply-chain fields.
Intra-group onlyUS-centric filing with thin international coverage
The United States accounts for 67 patent records — the dominant jurisdiction by a large margin. China follows at 20, with Europe (EPO) and WIPO (PCT) each at 4. Canada, India, and Taiwan each register 1–2 records. This geographic skew means that IP protection outside the US and China is sparse, creating enforcement gaps in European and Asia-Pacific markets that challengers could exploit or that incumbents may need to address.
US-dominantGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| STMicroelectronics (Tours) SAS | STMicroelectronics Appl. GmbH | 3 |
| STMicroelectronics (Tours) SAS | STMicroelectronics S.p.A. (DE) | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
GaN Systems leads on HEMT packaging; Huawei challenges on device structure
The two most active filers approach GaN IP from distinct angles — one as a power-device specialist, the other as a vertically integrated technology company with broad semiconductor reach.
GaN Systems
GaN Systems holds 22 patent records, concentrated in H01L 29 (semiconductor device structures), H01L 23 (device packaging), and H10D 62 (general semiconductor devices). This three-class combination signals a comprehensive fence around HEMT device design and embedded packaging — the technical core of high-power GaN switching. Momentum is flagged as a new entrant in the recent filing window, reflecting a small recent-period base relative to its accumulated total.
22 patent recordsHuawei Technologies
Huawei Technologies holds 7 patent records, with focus areas in H01L 29 (semiconductor device structures), H01L 23 (packaging), and H02M 3 (DC power conversion). The presence of H02M 3 distinguishes Huawei’s portfolio from the leader’s — indicating interest in GaN-based power conversion circuitry beyond the device itself. Recent filing activity is also flagged as a new entrant in the momentum window, reflecting a small recent-period count.
7 patent records| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| GaN Systems Inc. | 3 | ▲ new entrant |
| Huawei Technologies Co., Ltd. | 3 | ▲ new entrant |
| STMicroelectronics (Tours) SAS | 2 | ▲ new entrant |
| HUANG CHIH SHU | 1 | ▲ new entrant |
Under-served branches adjacent to the GaN device core
Several IPC classes adjacent to the dominant H01L core carry notably sparse coverage relative to their technical relevance to GaN substrate and gallium supply applications; two stand out as worth monitoring for R&D positioning.
C30B · Crystal growth
Crystal growth (C30B) accounts for only 2 patent records — a 1% share among the IPC classes observed. Given that bulk GaN substrate quality and gallium source purity are foundational to downstream device performance, this branch is technically adjacent and plausibly valuable. The sparse coverage may reflect that substrate suppliers prefer trade secrecy over patent protection, or that the field is genuinely underdeveloped. For firms focused on upstream gallium supply or boule growth processes, this branch represents a comparatively open area with a realistic entry path through process-chemistry and defect-control innovations.
Search this in Eureka →H02M · Power conversion (AC/DC)
Power conversion (H02M) holds only 3 patent records — a 2% share — despite GaN’s primary commercial value proposition being high-efficiency power switching in AC/DC and DC/DC converters. Huawei’s portfolio already touches H02M 3, signaling awareness of this adjacency among large-company challengers. The branch remains thin overall, and firms developing GaN-integrated power-stage topologies or gate-driver co-integration architectures could file in this space with relatively limited prior-art density to navigate.
Search this in Eureka →How leading filers differ by technology route across IPC branches
Route coverage across the main technology branches in the current evidence set.
| Player | H01L 29 · Semiconductor devices | H01L 21 · Semiconductor devices | H01L 23 · Semiconductor devices | H10D 62 · Semiconductor devices (general) | H10D 30 · Semiconductor devices (general) |
|---|---|---|---|---|---|
| GaN Systems Inc. | Strong · 22 | Emerging · 4 | Strong · 16 | Moderate · 8 | Moderate · 6 |
| STMicroelectronics (Tours) SAS | Strong · 3 | Strong · 5 | Absent | Strong · 5 | Strong · 5 |
| NXP USA Inc. | Strong · 6 | Strong · 6 | Absent | Moderate · 2 | Moderate · 2 |
| LIU YAN FEI | Strong · 3 | Absent | Strong · 4 | Strong · 3 | Strong · 3 |
| NG WAI TUNG | Strong · 3 | Absent | Strong · 4 | Strong · 3 | Strong · 3 |
Frequently asked questions
The corpus covers 73 patent families. This is the base for lifecycle, trend, and white-space analysis. Applicant rankings are drawn from a top-100 filer set and are expressed in patent records, which can differ from family counts because a single family may be counted across multiple jurisdictions or IPC classes.
GaN Systems holds the top position with 22 patent records — more than three times the next-ranked filer, Huawei Technologies at 7. Tagore Technology and NXP USA each follow at 6, and STMicroelectronics (Tours) at 5.
The evidence classifies the field as Maturity, with annual filings having plateaued near their 2020 peak. The recent-window growth rate is negative at -4%, consistent with a field where foundational device architectures are well-covered and incremental differentiation is the primary competitive mode.
The United States leads with 67 patent records, followed by China at 20. Europe (EPO) and WIPO (PCT) each account for 4 records. Canada, India, and Taiwan each register between 1 and 2 records, indicating limited international coverage outside the US–China axis.
The highest-cited work in the corpus relates to III-Nitride High Electron Mobility Transistor structures (98 citations), followed by patents on embedded packaging for GaN devices (78 and 70 citations), high-power electronic device packages (57 citations), and high-performance RF switch designs (44 citations). These citation leaders cluster around HEMT architecture and packaging — consistent with GaN Systems’ core focus areas.
Crystal growth (C30B) and power conversion (H02M) are the sparsest branches relative to their commercial relevance — holding only 2 and 3 patent records respectively. Printed circuits and assemblies (H05K) at 4 records and other solid-state devices (H10N) at 9 records are also comparatively thin. These observations reflect current filing density and should be assessed alongside freedom-to-operate searches before treating them as confirmed open spaces.
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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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