GaN-on-Silicon Cost Reduction Patent Snapshot
The GaN-on-Silicon cost reduction patent corpus is extremely small and highly concentrated, with only three identified applicants and activity peaking in 2017 before dropping away. Lumileds Holding BV and Korrus Inc share the top ranking, while the United States is the sole active filing jurisdiction with supplementary coverage in South Korea.
A tightly held, post-peak niche dominated by Lumileds and Korrus
The corpus is narrow: three applicants account for all activity, with Lumileds Holding BV and Korrus Inc each holding two patent records and the Regents of the University of California holding one.
Concentration is absolute — the top five filers account for the entire pool of the ranked applicants visible in this query, indicating no meaningful second tier exists. There is no observable gap between leader and challenger because the two top-ranked applicants are tied.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Lumileds Holding BV | 2 | |
| 2 | Korrus Inc | 2 | |
| 3 | Regents of the University of California | 1 |
Lumileds and Korrus together define the frontier of this sub-topic; any new entrant would be entering a space where existing coverage is thin but where these two players hold all registered ground.
Activity peaked in 2017; subsequent years show no recorded filings. Given the standard 18-to-24-month publication lag, very recent work may not yet be visible, but the long gap since 2017 is consistent with the lifecycle signal.
A single filing burst in 2017, then sustained dormancy across all IPC branches
The trend chart reveals a sharp spike in 2017 followed by a single filing in 2021 and no recorded activity in any other year. The technology composition chart shows that semiconductor device patents (H01L) are visible in, with smaller representations in lasers, sterilisation, and materials.
Annual filing trend
Two filings appear in 2017 and one in 2021; all other years from 2018 through 2026 record zero. The standard publication lag means filings from late 2024 onward may not yet be reflected, but the pattern over the prior several years is clear.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (semiconductor devices) is the visible branch, followed by H01S (lasers and stimulated emission) and H10P. A61L (sterilisation and disinfecting) and C09K (materials for miscellaneous applications) appear at the margins, reflecting the University of California’s UV-application 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.
Iii-nitride LED with UV emission by auger carrier …
A III-nitride LED with simultaneous visible and ultraviolet (UV) emission, in which the visible emission is due to conventional InGaN active region mechanisms and the UV emission occurs due to Auger carrier injection into a UV light emitting region, such as impurity-doped AlGaN. The primary application for the III-nitride LED is general airborne pathogen… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Iii-nitride LED with tunnel junction | 27 |
| 2 | INxALyGAzN OPTICAL EMITTERS FABRICATED VIA SUBSTRA… | 8 |
| 3 | Iii-nitride LED with UV emission by auger carrier … | 7 |
| 4 | III-nitride LED with tunnel junction | 4 |
| 5 | INxALyGAzN OPTICAL EMITTERS FABRICATED VIA SUBSTRA… | 2 |
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.
Lumileds Holding BV
Lumileds holds 2 patent records, concentrated in H01L (semiconductor devices), H01S (lasers and stimulated emission), and H10P. No momentum data is available for the recent period, consistent with the overall dormancy of the corpus since 2017. Their technical emphasis spans device architecture and stimulated emission, suggesting integration of GaN cost-reduction approaches into broader LED and laser platforms.
patent records: 2Korrus Inc
Korrus Inc also holds 2 patent records, matching Lumileds at the top of the ranking. Specific technology focus by IPC class is not separately listed for Korrus in the applicant-technology breakdown, and no momentum trend data is available. Their presence alongside Lumileds — both formerly linked to the Soraa lineage — makes them the most directly comparable peer in this sub-topic.
patent records: 2Frequently asked questions
The corpus contains 3 patent families in scope. It is a very narrow sub-topic with only three identified applicants and activity confined to 2017 and 2021.
Lumileds Holding BV and Korrus Inc are co-leaders, each holding 2 patent records. The Regents of the University of California hold 1 patent record, rounding out the full applicant field.
The United States is the lead jurisdiction with 3 patent records. South Korea carries 2 patent records. No European, Chinese, or Japanese coverage is present in this corpus.
The field is classified as Decline, with annual filings easing back from the 2017 peak. A single filing appeared in 2021, and no activity has been recorded since.
H01L (semiconductor devices) is the visible branch. H01S (lasers and stimulated emission) and H10P also appear, alongside minor representation in A61L (sterilisation) and C09K (luminescent materials), the latter two linked to the University of California’s work.
No co-applicant relationships are detected in this corpus. All three applicants appear to have filed independently, with no visible consortium or joint-filing arrangement.
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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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