Silicon Photonic Sensor Integration Patent Snapshot 2026
The indexed corpus for silicon photonic sensor integration is extremely narrow — two patent families held by two distinct filers — indicating that this precise intersection of silicon photonics and sensor integration remains sparsely claimed as a discrete topic. Filing activity has plateaued following a single publication in 2019, and the United States is the sole lead jurisdiction, suggesting ample room for new entrants to establish prior art.
Two filers share an equal foothold in a nascent space
Apple Inc and SiPhox Inc each hold one patent family in the indexed corpus, giving neither a visible position by count alone. Within the top-100 ranked applicants, the top five filers account for the entire combined total, reflecting how small and early-stage this defined topic is.
There is no meaningful tier gap between the two players: both sit at one patent family apiece. This parity is characteristic of a field still establishing its patent vocabulary rather than one with entrenched incumbents.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Apple Inc | 1 | |
| 2 | SiPhox Inc | 1 |
Apple’s position in optical elements and systems (G02B) signals interest in photonic integration for device-level applications, while SiPhox’s focus on material analysis and testing (G01N) points toward sensing-specific use cases — two complementary but non-overlapping technology routes within the same corpus.
The most recent approximately 18–24 months of filing data are subject to publication lag and likely under-represent current activity; the apparent zero-filing years of 2023–2026 should not be read as a halt in industry interest.
Sparse filing history split evenly across two IPC branches
The annual trend and technology composition charts together reveal a corpus that has produced only two filing events over a decade, each mapped to a distinct IPC class — a pattern consistent with early-stage, exploratory patenting rather than competitive accumulation.
Annual filing trend
A single filing appeared in 2019, another in 2022, and no activity is recorded in surrounding years. Because patent publications typically lag filing dates by 18–24 months, apparent zeros in 2024–2026 cannot be treated as confirmed inactivity; actual filing rates in those years may be higher once publication catches up.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The corpus splits equally between G01N (material analysis and testing) and G02B (optical elements and systems), each contributing one patent record. This even split reflects the dual nature of silicon photonic sensor integration — part sensing science, part optical engineering — and suggests neither branch has yet attracted concentrated filing.
↗ 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.
Integrated silicon photonic biosensors for plate r…
Disclosed herein are automated biosensing devices (3200) for biosensing including a set of sensor units organized in an array (3204). Each of the sensor units includes an optical reader (3305) optically coupled to a corresponding sensor photonic integrated circuit (PIC). Each sensor PIC (3302, 3502) includes one or more optical analyte sensors each… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Silicon photonics using off-cut wafer having top-s… | 18 |
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.
Apple Inc
Apple Inc holds one patent family, focused on G02B optical elements and systems — consistent with the company’s known interest in integrating photonic waveguides into consumer devices. No momentum figure is available for Apple in the applicant-momentum evidence, so trajectory cannot be confirmed from current data. Their lone family nonetheless anchors the optical-integration branch of this corpus.
families: 1SiPhox Inc
SiPhox Inc also holds one patent family, concentrated in G01N material analysis and testing — specifically sub-classes G01N 21 and G01N 35 — reflecting a sensing-first approach to silicon photonics. The applicant-momentum data flags SiPhox as a new entrant, with its single recent-period family representing its full recorded presence. As a purpose-built silicon photonics sensing company, its trajectory bears watching as the corpus grows.
families: 1Frequently asked questions
The indexed corpus contains 2 patent families. This is a very small corpus, likely reflecting either a narrow query definition or the early-stage nature of this specific technology intersection.
Apple Inc and SiPhox Inc each hold one patent family, making them co-equal in the current corpus. Apple’s filing is classified under G02B optical elements and systems, while SiPhox’s filing covers G01N material analysis and testing.
The evidence classifies the field as Maturity, with annual filings having plateaued near their peak. Given that the peak itself was a single family in 2019, this characterization reflects stagnation at a very low absolute level rather than a crowded mature market.
The United States is the lead jurisdiction with one patent record, and WIPO PCT also appears with one record, indicating one filing has been extended internationally via the PCT route. No other regional offices appear in the corpus.
No co-applicant or jointly assigned families are recorded in the current corpus. With only two single-assignee families, the dataset is too small to draw conclusions about ecosystem collaboration patterns.
The top-cited reference identified in the evidence is a patent titled ‘Silicon photonics using off-cut wafer having top-s…’ with 18 citations. Full bibliographic details for that reference were not returned in the evidence, so further lookup via PatSnap Eureka is recommended for complete information.
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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.
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.