SHJ Lifetime / PL Quality Control Patent Snapshot 2026
The patent corpus for SHJ lifetime and photoluminescence quality control is at a very early stage, with a single patent family on record filed by Institute of Physics Bhubaneswar in India. The field shows no established competitive concentration and represents a largely open technical space as of the current evidence window.
A nascent field with a single filer and no established competition
The current patent corpus for SHJ lifetime and photoluminescence quality control contains one patent family, held entirely by Institute of Physics Bhubaneswar, making it the sole ranked applicant.
With one applicant accounting for the entirety of the top hundred ranked filers’ combined total, there is no competitive tier structure to observe — the field has not yet attracted multiple institutional or commercial players.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Institute of Physics Bhubaneswar | 1 |
The sole filer’s position implies that formal IP activity in this specific intersection of silicon heterojunction characterization and PL-based quality control is only just beginning; no incumbent advantage or blocking portfolio has been established.
Only one patent family is in scope, and the most recent filing appears in 2025, so the corpus should be considered a very early snapshot subject to further publication as prosecution progresses. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single 2025 filing anchors the technology across three IPC branches
Annual filing activity shows no recorded filings across 2017–2024, with the sole patent family appearing in 2025. The technology composition spans three IPC branches, indicating a multi-disciplinary technical scope despite the minimal corpus size.
Annual filing trend
All recorded activity is concentrated in 2025, with zero filings in every prior year back to 2017. The 2026 data point reflects the standard publication lag and should not be interpreted as confirming zero activity for that year.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The single family spans three IPC classes — C01G (compounds of other metals), C23C (coating and surface deposition), and H01L (semiconductor devices) — suggesting the invention addresses material synthesis, deposition processes, and device-level semiconductor functionality simultaneously.
↗ 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.
Growth-angle controlled one-step optimization of m…
The present disclosure provides a one-step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide… (excerpt from the patent abstract)
Open this patent in Eureka →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.
Institute of Physics Bhubaneswar
Institute of Physics Bhubaneswar holds 1 patent family, the entirety of the current corpus. Their technical emphasis spans C01G 31 (compounds of other metals), C23C 14 (coating and surface deposition), and H01L 31 (semiconductor devices), suggesting a device-integrated approach to SHJ characterization. No applicant momentum data is available given the single filing.
patent families: 1No challenger identified
No second applicant appears in the current corpus. The challenger position is vacant, representing a structural opening for any institution or company active in silicon heterojunction solar cell characterization, thin-film deposition, or photoluminescence metrology.
patent families: —Frequently asked questions
The current evidence covers 1 patent family in scope, filed by Institute of Physics Bhubaneswar and published in 2025. This is an extremely nascent corpus and does not reflect the full breadth of related academic or industry activity that may not yet be formally patented.
Institute of Physics Bhubaneswar is the sole and therefore leading filer, holding the only patent family in the current corpus. No commercial entity or competing research institution appears in the applicant ranking.
India is the only jurisdiction with a recorded filing. No counterpart applications have been filed in China, the United States, Europe, or any other major patent office based on the current evidence.
The single patent family is classified under three IPC branches: C01G (compounds of other metals), C23C (coating and surface deposition), and H01L (semiconductor devices), indicating a multi-disciplinary scope covering materials, deposition processes, and semiconductor device functionality.
A lifecycle stage cannot be determined from a single filing. No filings were recorded between 2017 and 2024; the sole family appeared in 2025. Whether this represents the start of a growth phase or an isolated filing cannot be determined from the current evidence alone.
No top-cited patents appear in the current evidence for SHJ lifetime and PL quality control as a distinct patent corpus. Researchers and engineers should look to broader silicon heterojunction solar cell and photoluminescence metrology literature for foundational prior art.
Built on Patsnap Open Platform
This report’s underlying patent dataset — filings, assignees, technology clusters — is open for developers via MCP and REST API. Free to start, 10,000 credits, no credit card required.
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.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.