Optical Transceiver Safety and Compliance Patent Landscape 2026
- Filing activity peaked in 2020 (7 families) and has since flattened toward zero, well ahead of the 18-month publication lag — this is a mature, not a growing, claim space.
- G02B optics dominates the IPC mix at 41 of the underlying subclass hits versus 13 for H01S lasers, showing most protection sits in the optical path, not the emitter itself.
- US filings lead 29 to 15 for Europe with Japan, Germany and China each in single digits, marking the US as the primary compliance battleground for this art.
Top-5 share is the combined record count of the five largest assignees divided by all 53 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape tracks patent families at the intersection of optical transceivers, optical modules and co-packaged optics with claims specifically directed to laser safety, eye safety, Class 1 compliance or regulatory compliance. The scope is narrow by design: it excludes general transceiver architecture and general laser-diode patents unless the claim language ties directly to a safety or compliance mechanism such as interlocks, presence detection or power-limiting control loops.
Fifty-three families across an eleven-year window is a small, well-defined corpus. That size matters for reading the trend and the assignee ranking below: a handful of filings in any one year moves the curve, and a single prolific filer can dominate a ranking that would look very different with a larger denominator.
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Filing trend and technology composition
Two views of the same 53-family corpus: when protection was sought, and which parts of the optical/electronic stack it was written into.
Filing trend: a 2020 peak, then decline
Filings were at zero in 2017, rose to a peak of 7 in 2020, and were back to zero at the 2022 midpoint — a flat-to-declining pattern rather than sustained growth. Because publication lags filing by roughly 18 months, the last one to two years in any chart will always understate true activity; even accounting for that lag, the shape points to a space where the core safety mechanisms were claimed early and have not attracted a fresh wave of filing since.
IPC composition: optics carries the claim load
G02B (optical elements & systems) accounts for 41 of the subclass hits, more than triple H01S (lasers & stimulated emission) at 13. H04B transmission-general adds 21. The concentration in G02B suggests safety and compliance claims are written predominantly around beam paths, receptacles and optical interlocks rather than around the laser die or driver circuitry itself — a distinction that matters when scoping a freedom-to-operate search.
Shares are the percentage of the 53 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Optical Transceiver Safety and Compliance with Eureka
This page is one run against one query. Ask Eureka your own question about optical transceiver safety and compliance and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited records
Laser eye safety and fiber receptacle presence detection
Provided herein is a novel approach to simultaneous fiber presence detection and improved laser eye safety of an optical transceiver. The subject optical transceiver is fitted with at least one switch in its receptacle that controls the laser diode and indicates the presence of a fiber (or fibers) within such a receptacle. If a fiber is present within the subject module receptacle, the laser switch is permitted to be "on", whereas the absence of a fiber will prevent the laser switch from turning on, thereby permitting effective control of the laser at a single point of failure within the entire optical transceiver system.US8391708B1 — II-VI Delaware, Inc. — issued 2013-03-05
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6888988B2 | Small form factor all-polymer optical device with integrated dual beam path based on total internal reflectio… | 100 |
| 2 | US6873800B1 | Hot pluggable optical transceiver in a small form pluggable package | 83 |
| 3 | US20040179784A1 | Small form factor all-polymer optical device with integrated dual beam path based on total internal reflectio… | 78 |
| 4 | US6967320B2 | Methods for maintaining laser performance at extreme temperatures | 41 |
| 5 | US6836493B2 | Laser initialization in firmware controlled optical transceiver | 40 |
| 6 | US20040136422A1 | Laser initialization in firmware controlled optical transceiver | 40 |
| 7 | US8923670B2 | Molded optical structure for optical transceiver | 33 |
| 8 | US6035664A | Method of producing an optical module | 29 |
| 9 | US6123465A | Optical module | 26 |
| 10 | US6897424B2 | Controlling a laser to stop output in accordance with detection of output lights corresponding to channels | 22 |
Citation counts reflect age as much as importance — the oldest records in a search corpus accumulate citations simply by being available longer. Treat the ranking as a map of influence on later filers, not a ranking of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three things the numbers say about where protection has actually been sought, and what that implies for a new filing.
A short filing wave, not a sustained build-out
The corpus shows zero filings in 2017, a rise to a single peak year of 7 in 2020, then a return to zero by 2022. That is consistent with a small set of assignees clearing their core safety-mechanism claims in one window rather than an ongoing arms race.
Optics, not the laser, carries most claims
Optical elements and systems (G02B) outnumber laser & stimulated-emission claims (H01S) by more than three to one. Safety mechanisms here are more often built into the beam path and receptacle than into the emitter or its drive electronics.
The US is the primary compliance battleground
United States filings nearly double the EPO count, with Germany, Japan, Austria and China each contributing only one or two records. A design-around or clearance search that skips the US misses most of the art.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to optical transceiver safety and compliance, with the prior art for and against each one.
Who holds the ground, and where it is open
The assignee ranking is short and, per the recent-year momentum figures, largely dormant: every tracked assignee shows zero filings in the latest year. That is a market where the incumbents staked their claims and moved on, leaving the door open for a differently-scoped filing rather than a head-on challenge.
No active filer in this niche right now
CIENA, Agilent, Fujitsu, Avago (Singapore), Sumitomo Electric and Rosemount Aerospace all show zero filings in the most recent tracked year. Combined with the 2020 peak-then-decline trend, this points to a corpus of settled positions rather than live contests.
A small ranking where single filings matter
With only 53 families spread across the assignee table, one or two additional filings can reorder rankings materially. Read any single assignee's position as a snapshot, not a durable market-share figure.
Coverage outside the US-EU pair is thin
Japan, Germany, Austria and China each carry only one or two filings. An assignee betting on strong protection in those jurisdictions for this specific safety/compliance claim language would be filing into comparatively empty ground.
| Assignee | Recent year | YoY |
|---|---|---|
| Ciena Corporation | 0 | — |
| Agilent Technologies, Inc. | 0 | — |
| Fujitsu Limited | 0 | — |
| Avago Technologies Fiber IP (Singapore) Pte. Ltd. | 0 | — |
| Sumitomo Electric Industries, Ltd. | 0 | — |
| Rosemount Aerospace Inc. | 0 | — |
| Nippon Sheet Glass Co., Ltd. | 0 | — |
| Lumentum Technology UK Limited | 0 | — |
Where to take this
Two directions follow from a corpus this size and shape: verify freedom to operate against the settled core, and probe the adjacent branches that carry little claim density.
Run a freedom-to-operate check on receptacle interlocks
The most-cited records concentrate around receptacle presence detection and beam-path switching. Before designing a new safety mechanism, map its claim language against those specific patent families rather than the field in general.
Explore in Patsnap Eureka →Scope a filing into the under-claimed branches
Power-limiting control loops for multiplexed links and eye-safety sensing tied to digital signal processing both sit outside the dense G02B core. A first claim there has more room than one written against beam-path switching.
Explore in Patsnap Eureka →Common questions
The core classes are H01S5/00 and H01S5/0683 for laser & stimulated-emission devices, and G02B6/42 for optical elements and coupling. In this corpus, G02B accounts for 41 of the subclass hits versus 13 for H01S, meaning most safety and compliance claims are written into the optical path — receptacles, beam switches, coupling elements — rather than into the laser diode itself. A freedom-to-operate search limited to laser-diode classes alone would miss most of the relevant art.
Not on the evidence here. Filing peaked at 7 families in 2020 and had returned to zero by the 2022 midpoint, and every tracked assignee shows zero filings in the most recent year. Publication lag of roughly 18 months means the very latest year is always undercounted, but the multi-year decline predates that lag and suggests the core mechanisms were claimed early rather than being an area of ongoing build-out.
United States filings lead with 29 records, followed by the European Patent Office at 15. Austria, Germany, Japan and China each contribute only one or two filings in this corpus. Anyone doing clearance work on laser-safety or Class 1 compliance claims for transceivers should treat the US as the primary jurisdiction to search exhaustively, with the EPO as a strong secondary check.
US8391708B1, assigned to II-VI Delaware, Inc., claims a receptacle-integrated switch that ties laser eye safety to fiber presence detection: the laser diode can only be switched on when a fiber is detected in the receptacle, and is prevented from turning on in its absence. This gives single-point-of-failure control over laser emission at the receptacle rather than upstream in the driver circuit. Anyone building a presence-detection or interlock mechanism for a transceiver receptacle should review this claim scope closely before finalising a design.
The subclass data shows thin coverage in G06F (digital data processing) and H05K (printed circuit assemblies) relative to the dense G02B core, and H04J multiplex-communication safety mechanisms are similarly under-claimed at only 4 hits. Co-packaged optics safety interlocks and power-limiting control loops for multiplexed links stand out as specific branches with low claim density. A first filing in those areas would be competing against a much thinner prior-art base than one written against receptacle switching or beam-path claims.
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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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.