OLED In-Line Deposition Monitoring Patent Snapshot
The OLED in-line deposition monitoring patent space is small and highly concentrated, with Global OLED Technology LLC holding the largest share of a corpus of 12 patent families. Filing activity has been sporadic rather than sustained, with a notable cluster appearing in 2025 that warrants watching given standard publication lag.
Global OLED Technology LLC leads a tightly held niche
Global OLED Technology LLC ranks first with 4 patent records, followed by Kunshan Go Visionox Opto Electronics at 3 and Eastman Kodak at 2, making the top three filers the visible voices in this field.
The top five filers account for 65% of the ranked applicants visible in this query’ combined total, signalling an unusually concentrated visible assignee structure for a niche monitoring technology. A clear tier gap separates the top two or three players from the remaining applicants, most of whom hold only a single record.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Global OLED Technology LLC | 4 | |
| 2 | Kunshan Go Visionox Opto Electronics Co., Ltd. | 3 | |
| 3 | Eastman Kodak Company | 2 | |
| 4 | Aristotle University of Thessaloniki Research Committee | 2 | |
| 5 | Guangxi Free Trade Zone Ruixian Technology Co., Ltd. | 2 | |
| 6 | SAVEETHA INST OF MEDICAL & TECH SCI | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 7 | Lovely Professional University | 1 | |
| 8 | Xi’an Kaixiang Optoelectronics Technology Co., Ltd. | 1 | |
| 9 | Sri Manakula Vinayagar Engineering College | 1 | |
| 10 | Anhui Semicon Integrated Display Technology Co., Ltd. | 1 | |
| 11 | Ningde Weitu Intelligent Technology Co., Ltd. | 1 | |
| 12 | Ramco Institute of Technology | 1 |
The leadership position of Global OLED Technology LLC — a patent-holding entity built on foundational OLED IP — combined with Eastman Kodak’s historical mass-sensor citations, suggests the field’s core IP was established by a small group of early innovators whose assets now anchor the evidence snapshot.
The most recent filing window should be treated cautiously: patents filed in the past 18–24 months are routinely delayed in publication and may not yet appear in this corpus. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Sporadic filings with a recent uptick; core IPC classes span OLED materials and metrology
The annual filing trend reveals an irregular cadence rather than continuous growth, while the technology composition shows that deposition chemistry and in-process measurement are the visible technical routes.
Annual filing trend
Activity peaked with 3 records in 2018, was essentially absent from 2019–2021, returned modestly in 2022–2023, and shows 6 records attributed to 2025 — though that figure is likely incomplete given publication lag and should not be read as a definitive surge. The lifecycle stage is not yet determinable from the available evidence.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H10K (organic semiconductors including OLED) and C23C (coating and surface deposition) are the two heaviest classes, reflecting the core physics of vapor-phase thin-film deposition. G01B (length and dimension measurement) and G01N (material analysis and testing) together signal the in-process metrology angle that distinguishes this niche from broader OLED device patents.
↗ 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.
Reusable mass-sensor in manufacture of organic lig…
A method for controlling the deposition of an organic layer in making an organic light-emitting device includes depositing at a deposition zone organic material forming a layer of the organic light-emitting device and providing a movable sensor which, when moved into the deposition zone and is being coated during the depositing step, provides a signal… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Reusable mass-sensor in manufacture of organic lig… | 61 |
| 2 | Reusable mass-sensor in manufacture of organic lig… | 24 |
| 3 | Method for in-line determination of film thickness… | 14 |
| 4 | Reusable mass-sensor in manufacture of organic lig… | 10 |
| 5 | Reusable mass-sensor in manufacture of organic lig… | 5 |
| 6 | Evaporation mask, OLED panel and system, and evapo… | 4 |
| 7 | Reuseable mass-sensor in manufacture of organic li… | 3 |
| 8 | 一种OLED产品实时监控折弯装置 | 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.
Global OLED Technology LLC
The top-ranked filer with 4 patent records, Global OLED Technology LLC is a patent-holding entity whose portfolio anchors the mass-sensor and reusable deposition-monitor cluster — the most-cited work in the field. Its holdings span foundational measurement approaches that other applicants must design around.
patent records: 4Kunshan Go Visionox Opto Electronics
The second-ranked filer with 3 patent records, Kunshan Go Visionox focuses its technical activity across C23C 14 (coating and surface deposition), H10W 46, and H01L 51 (semiconductor devices), reflecting an integrated device-maker perspective on deposition control rather than a pure-metrology angle. No momentum trend data is available for this applicant in the current evidence.
patent records: 3Frequently asked questions
The corpus currently contains 12 patent families in scope. This is a small, specialized niche relative to the broader OLED device patent landscape.
Global OLED Technology LLC ranks first with 4 patent records. Its portfolio covers foundational mass-sensor and reusable deposition-monitor approaches that are the most-cited work in the field.
The United States leads with 8 patent records, followed by China with 5, India with 4, and Europe (EPO) with 3. The US dominance reflects the headquarters of the leading applicant and the historical origin of foundational IP.
H10K (organic semiconductors including OLED) and C23C (coating and surface deposition) carry the most records, reflecting the physical core of vapor-phase thin-film deposition. G01B and G01N together cover the in-process metrology dimension.
No co-applicant or co-filing relationships appear in the current evidence. The field appears to have developed through independent corporate and academic filings rather than pre-competitive consortia.
G06N (AI-based computing) has only 1 record in the corpus, suggesting that machine-learning-driven deposition process control has attracted minimal dedicated patent activity so far. H05B (electric heating and lighting circuits) also remains relatively sparse at 6 records compared with the visible classes, pointing to a gap in electrical subsystem monitoring during deposition.
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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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