Fiber Laser Durability Patents: Leaders vs Long Tail 2026
- Filing has cooled since its 2022 peak. 105 families published that year against 74 in 2017 and just 8 so far in 2026 — a partial year, but the multi-year trend line is flat to declining rather than accelerating.
- No assignee is currently pushing the frontier. Every tracked assignee in the recent-year momentum list shows zero or steeply negative year-on-year filing activity, including the largest historical filers.
- Claim density clusters around lasers and optics, not ruggedization. H01S and G02B together account for 874 of the tracked records, while durability-adjacent classes like F21V (108) and B23K (137) carry far less filing weight.
Filing growth compares 2021 (66 records) with 2024 (69) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 1,872 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Fiber laser environmental durability sits at the intersection of laser source design and materials engineering: claims here cover how a fiber laser’s optical and mechanical components survive thermal cycling, vibration and prolonged operational stress rather than how the laser generates or shapes light in the first place. The search corpus pulls records that explicitly combine fiber laser terminology with durability, thermal stability or vibration robustness language in the title, abstract or claims, giving a narrower and more decision-relevant set than a general fiber laser search would.
The 1,872 records span eight IPC subclasses from core laser physics (H01S) through optical elements (G02B), modulation (G02F), material testing (G01N), glass composition (C03C), welding/soldering (B23K), semiconductor devices (H01L) and lighting components (F21V) — an unusually wide spread for a durability-specific query, reflecting that ruggedization claims get attached to whatever underlying component they protect.
Let an AI agent run this analysis on your own technology
Pick a task. Every answer cites the patents behind it.
Trend and technology composition
Two views of the same dataset: how filing volume has moved year over year, and how records distribute across the IPC subclasses that make up the durability-adjacent claim space.
A peak already behind us
Publications rose from 74 in 2017 to a peak of 105 in 2022, then declined toward 8 in 2026. Because publication lags filing by roughly 18 months, the last one to two years understate true filing activity — but the multi-year shape is a plateau, not a ramp.
Concentration in laser and optical hardware
H01S (439) and G02B (435) dominate the classification spread, with G02F (212) and G01N (178) as secondary clusters. Glass composition (C03C, 168), welding/joining (B23K, 137), semiconductor devices (H01L, 130) and lighting components (F21V, 108) each carry meaningfully less filing weight, marking them as comparatively open ground relative to core laser and optics claims.
Shares are the percentage of the 1,872 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Fiber Laser Environmental Durability with Eureka
This page is one run against one query. Ask Eureka your own question about fiber laser environmental durability and every answer comes back with the patent numbers behind it.
Try EurekaKey patents shaping the field
US5898715A — Optical communication system comprising a cladding pumped fiber laser
An optical communication system comprising a light source, a cladding pumped fiber laser having a pump cladding, an optical fiber attached to the cladding pumped fiber laser, the optical fiber having a cladding and a protective coating, and an expedient that prevents substantial damage to the protective coating of the optical fiber upon transmission of at least 1 watt of residual light out of the pump cladding.Filed by Alcatel-Lucent USA Inc., granted 1999-04-27. Its claims sit at the junction of optical power handling and physical protective-coating durability, a combination that recurs across the later corpus.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20100049180A1 | System and method for conditioning animal tissue using laser light | 701 |
| 2 | US20160155629A1 | Formation of heteroepitaxial layers with rapid thermal processing to remove lattice dislocations | 474 |
| 3 | US9929011B2 | Formation of heteroepitaxial layers with rapid thermal processing to remove lattice dislocations | 462 |
| 4 | US20030049003A1 | High index-contrast fiber waveguides and applications | 270 |
| 5 | US20030031438A1 | Structures incorporating polymer-inorganic particle blends | 258 |
| 6 | US5928222A | Fiber optic sensing techniques in laser medicine | 251 |
| 7 | US7313312B2 | Optical fiber and method for making such fiber | 241 |
| 8 | US20040213302A1 | Pulsed laser sources | 232 |
| 9 | US20170120337A1 | Methods and Systems for Coherent Imaging and Feedback Control for Modification of Materials | 231 |
| 10 | US5912257A | Two-photon upconverting dyes and applications | 221 |
Citation counts favour older filings in any searched corpus; treat them as a measure of influence on later filers, not of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Put your own technology through the same analysis
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →Reading the numbers
The filing trend, classification spread and citation pattern together describe a field that built up steadily through the late 2010s, peaked, and has since gone quiet — without a clear new leader emerging to replace the historical filers.
Peak passed, not approaching
Volume climbed from 74 families in 2017 to a peak of 105 in 2022, then fell sharply. Even allowing for publication lag understating the last year or two, the shape across the full window is a plateau followed by decline rather than sustained growth.
Claim space concentrated in core hardware
Nearly half of all records sit in laser source (H01S) or optical element (G02B) classifications. Durability-specific mechanical classes such as B23K and F21V trail well behind, suggesting the field still treats ruggedization as a property of the optical component rather than its own claim category.
No current frontrunner
Every assignee in the recent-year momentum data shows flat or negative year-on-year filing, including firms with substantial historical volume. That is consistent with a maturing claim space rather than one being actively contested by new filings.
US-anchored, with strong PCT use
The United States receives more than twice the filings of the next office (EPO), with a substantial 281 filed via WIPO PCT — indicating many applicants pursue multi-jurisdiction protection rather than filing domestically only.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to fiber laser environmental durability, with the prior art for and against each one.
Who holds the claim space
Co-assignee pairings and recent-year momentum both point to a small set of established filers with limited fresh activity, alongside a long tail of single- or few-filing entrants that never repeat.
One hub, several individual co-inventors
The strongest co-assignee pairings all center on a single corporate assignee working with named individual co-inventors, each pairing appearing 10 times. This points to a concentrated internal R&D team rather than cross-company joint filing.
Momentum is negative across the board
The assignee with the largest single-year filing count in the momentum table still shows a 97% year-on-year decline, and every other tracked assignee registered zero filings in the latest year. No entity in this dataset is currently scaling its filing rate.
Influence sits with decades-old filings
The most-cited records in the corpus date well before the 2017-2022 filing peak, meaning current applicants are building on foundational optical and materials work rather than on recent durability-specific claims.
| Assignee | Recent year | YoY |
|---|---|---|
| Signify Holding | 1 | -97% |
| Circuit Therapeutics, Inc. | 0 | — |
| Corning Incorporated | 0 | — |
| FUJIFILM Corporation | 0 | — |
| Nippon Telegraph and Telephone Corporation (NTT) | 0 | — |
| Notump Technology Co., Ltd. | 0 | — |
| 3M Innovative Properties Company (USA) | 0 | — |
| Toray Industries, Inc. | 0 | — |
Where to take this analysis
The dataset points to specific follow-up questions rather than a single conclusion — the flat trend and negative momentum change what a freedom-to-operate check or a new filing strategy should prioritise.
Check freedom-to-operate against the H01S/G02B core
With 874 of 1,872 records concentrated in laser source and optical element classifications, any new filing touching core fiber laser hardware needs a targeted clearance search in those two subclasses specifically.
Run a clearance search in EurekaTest the under-claimed durability branches
Lower record counts in B23K, F21V and C03C may reflect open claim space rather than low relevance — worth validating against actual product roadmaps before assuming the gap is real.
Explore white space in EurekaWatch for a re-acceleration signal
Because publication lags filing by around 18 months, the apparent 2025-2026 decline could partly reverse as more filings publish; re-check the trend in two to three quarters.
Track filing trends in EurekaCommon questions on this landscape
No, not currently. Filings rose from 74 families in 2017 to a peak of 105 in 2022, then declined to 8 by 2026, though that last figure is a partial year and understated by publication lag. Taken as a whole, the multi-year trend is a plateau followed by decline rather than sustained growth, which is a different picture from a technology still in its buildup phase. Anyone evaluating this space should weight the 2022 peak more heavily than the most recent one or two years.
H01S (lasers and stimulated emission) and G02B (optical elements and systems) dominate, together covering 874 of the 1,872 tracked records. G02F (optical control and modulation) and G01N (material analysis and testing) form a secondary tier. Classes tied more directly to mechanical ruggedization, such as B23K (welding and soldering) and F21V (lighting device components), carry noticeably less filing weight, which is useful context when deciding where a new claim is likely to face dense prior art versus comparatively open ground.
The dataset's recent-year momentum table does not show a clear active leader: every tracked assignee registered zero filings in the latest year except one, which still posted a 97% year-on-year decline. Co-assignee data shows a pattern of one corporate assignee filing repeatedly alongside named individual inventors rather than joint filing across multiple companies. This suggests the historically active filers have slowed rather than that a new entrant has taken over the space.
US5898715A, assigned to Alcatel-Lucent USA Inc. and granted in 1999, describes an optical communication system built around a cladding-pumped fiber laser, with specific claim language protecting the fiber's protective coating from damage caused by residual light escaping the pump cladding above one watt. It sits precisely at the intersection of power handling and physical durability that defines this search topic, which is why it recurs as foundational prior art for later filings combining fiber laser design with environmental or thermal robustness claims.
The lower-volume IPC classes relative to the core H01S/G02B cluster are the first place to look: welding and joint fatigue in fiber laser housings (B23K, 137 records), glass compositions for wide-temperature-range cladding (C03C, 168 records), and lighting device component durability (F21V, 108 records) all carry meaningfully less filing density than the core optics classes. Lower volume can mean genuine open ground or simply lower commercial priority historically, so it is worth cross-checking against current product roadmaps rather than treating low counts alone as an opportunity signal.
Research Fiber Laser Environmental Durability in depth with Eureka
Go past this page: query the whole fiber laser environmental durability corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
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.