GaN Micro/Chip-Scale LED Patent Snapshot 2026
The GaN micro/chip-scale LED patent corpus is small and highly concentrated, with academic institutions — led by Yale University and Peking University — holding the dominant positions. Filing activity has been episodic rather than sustained, and the field’s competitive structure is still being shaped by a handful of research-driven applicants.
Yale University and Peking University lead a tight, academically dominated field
Yale University holds the largest share of documented filings, followed closely by Peking University, with three additional applicants each contributing a single patent family. Together, the top five filers account for all activity within the ranked applicants visible in this query — an unusually high concentration signalling that commercial entities have yet to establish a meaningful patent presence.
The tier gap between the top two is narrow: Yale University leads with 5 patent families and Peking University follows with 4, leaving the remaining three applicants — Tectus Corp, Shenzhen University, and Hubei Jiufengshan Lab — at one family each. There is effectively no second-tier cluster.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Yale University | 5 | |
| 2 | Peking University | 4 | |
| 3 | Tectus Corporation | 1 | |
| 4 | Shenzhen University | 1 | |
| 5 | Hubei Jiufengshan Laboratory | 1 |
The dominance of two research universities and one national laboratory signals that foundational, device-architecture IP is being established in academia before large semiconductor manufacturers have entered. This creates both freedom-to-operate questions around the Yale nanoporous micro-LED work and potential licensing leverage for early commercial entrants.
Filings from the most recent 18–24 months are typically under-counted due to publication lag; the corpus of 12 patent families should be treated as a minimum floor for the period examined. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Episodic filing bursts and near-total dominance of semiconductor device classifications
The annual filing trend reveals two discrete bursts of activity rather than a steady ramp, while the technology composition is almost entirely anchored in semiconductor device IPC classes. These two patterns together suggest the field is in an exploratory, pre-commercial phase.
Annual filing trend
Filings clustered in two periods — 2018 and 2022 — with single-family years in 2023 and 2025 and no recorded activity in the intervening years. This episodic pattern is consistent with a field driven by discrete research programmes rather than continuous commercial development. The apparent zero for 2024–2026 should be read cautiously given publication lag.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The H01L semiconductor devices class accounts for all 12 patent families, confirming that device architecture and fabrication are the primary focal areas. C09K (materials for miscellaneous applications), C30B (crystal growth), and H10H (light-emitting semiconductor devices) each appear once, flagging adjacent technical directions that remain sparsely covered.
↗ 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.
Nanoporous micro-led devices and methods for making
The present invention provides LED devices comprising gallium nitride LED diodes, at least a portion of which have been modified with color-converting quantum dots. The invention also provides methods of fabricating the LED devices of the invention. (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Nanoporous micro-led devices and methods for making | 51 |
| 2 | Nanoporous micro-led devices and methods for making | 43 |
| 3 | 纳米多孔微LED器件及其制造方法 | 13 |
| 4 | 一种外延片及其制备方法 | 4 |
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.
Yale University
Yale University holds 5 patent families, the largest share in this corpus, concentrated in H01L 33 semiconductor device structures and extending into C09K 11 phosphor/luminescent materials and H01L 25 multi-component assemblies. The most-cited works in the dataset — the nanoporous micro-LED devices and methods series — originate from this group, with citation counts of 51 and 43 recorded. No momentum trend data is available for Yale in the applicant momentum evidence, suggesting its core filing activity predates the recent measurement window.
families: 5Peking University
Peking University holds 4 patent families and is flagged as a new entrant in the applicant momentum data, with all 4 recent-window filings representing a fresh entry into this corpus. Its technical focus spans both H01L 27 (semiconductor devices — arrays and integrated circuits) and H01L 33 (LED-specific device structures), indicating an approach that links micro-LED device design to larger-scale integration. This trajectory positions Peking University as the most active emerging challenger.
families: 4Frequently asked questions
The evidence covers 12 patent families in scope. This is a small corpus, reflecting the early-stage and research-intensive nature of the field. Filings from the most recent 18–24 months may be under-counted due to publication lag.
Yale University leads with 5 patent families, followed by Peking University with 4. Tectus Corp, Shenzhen University, and Hubei Jiufengshan Lab each hold 1 patent family. Academic and research institutions are visible in; no major commercial semiconductor manufacturer appears in the top-five ranking.
The most-cited works are two related patents titled ‘Nanoporous micro-LED devices and methods for making’, with citation counts of 51 and 43 respectively. A Chinese-language counterpart to the same nanoporous micro-LED work has 13 citations, and a patent covering an epitaxial wafer preparation method has 4 citations.
China and the United States each account for 4 patent records. Europe (EPO) and WIPO (PCT) each account for 2 records, indicating that at least some applicants are pursuing international protection beyond their home jurisdiction.
The applicant momentum data flags three new entrants in the recent filing window: Peking University (4 recent families), Hubei Jiufengshan Lab (1 recent family), and Shenzhen University (1 recent family). All three had no prior recorded activity in this corpus before their recent filings.
Three IPC branches each appear in only one patent family: C09K (phosphor and luminescent materials), C30B (crystal growth), and H10H (light-emitting semiconductor devices as a dedicated class). These represent relative sparsity within this corpus and may be worth investigating for freedom-to-operate or differentiation purposes, though validation against broader databases is recommended.
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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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