Optical and Atomic Inertial Sensing Patents: Who Leads, Gaps 2026
- 56.6% concentration. The top 5 assignees account for 205 of 362 records in scope — a field with a defined leadership tier rather than a flat field of small filers.
- Filing cooled after 2023. Filings peaked at 55 in 2023 and fell from 34 (2021) to 22 (2024), a 35% drop over that span, though 2025-26 counts are still filling in due to publication lag.
- Gyroscope claims dominate the class map. 91.4% of the 362 records sit in G01C (navigation & gyroscopes), while only 6.6% touch G02F optical modulation and 2.2% touch G01D — signalling where claim space is still open.
Filing growth compares 2021 (34 records) with 2024 (22) — 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 362 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Optical and atomic inertial sensing spans two measurement principles that solve the same navigation problem without GPS: optical gyroscopes, which infer rotation from the Sagnac effect in fiber, ring-laser or integrated photonic resonators, and atom interferometer sensors, which use laser-cooled atom clouds as inertial test masses. The scope here runs from classic fiber-optic gyroscope claims through integrated photonic variants to cold-atom source hardware and the field-deployability and long-term-stability language that separates lab demonstrations from shippable units.
The dataset covers 362 published records filed between 2015 and mid-2026, drawn from patent offices spanning the United States, Europe, China, the WIPO PCT route, Japan and Israel. Because publication lags filing by roughly 18 months, the most recent one to two years understate real filing activity and should be read as provisional.
Let an AI agent run this analysis on your own technology
Pick a task. Every answer cites the patents behind it.
Filing trends and technology composition
Two views of the same 362-record set: how filing activity has moved year over year, and which IPC subclasses carry the claim density.
Filing trend, 2017-2026
Annual filings rose from 15 in 2017 to a peak of 55 in 2023, then declined to 22 by 2024 — a 35% drop from the 2021 level of 34. 2025 and 2026 figures are still incomplete due to publication lag and should not be read as a continuing decline.
Technology composition by IPC subclass
G01C (distance, navigation & gyroscopes) covers 91.4% of the 362 records, confirming that gyroscopic rotation sensing is the dominant claim target. G02B optical elements follow at 32.0%, with H01S lasers at 13.0% and G02F optical modulation at just 6.6% — a much thinner layer given how central modulation is to bias control.
Shares are the percentage of the 362 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Optical and Atomic Inertial Sensing with Eureka
This page is one run against one query. Ask Eureka your own question about optical and atomic inertial sensing and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records in this landscape
US20220252400A1 — Optical gyroscope with a resonator having bias error reduction
Techniques for reducing the bias error present in optical gyroscopes are disclosed. At least one path length adjustment member is placed in an optical gyroscope resonator, configured to modulate the optical path length so that bias errors attributable to that path length are shifted outside the bandwidth of the gyroscope. Embodiments use microheaters coupled to the resonator or piezo-electric regions to achieve the modulation.Filed by Honeywell International, published 2022-08-11.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6195615B1 | Method of mutually aligning bodies and position-measuring sensor therefor | 248 |
| 2 | US7106448B1 | Integrated resonant micro-optical gyroscope and method of fabrication | 93 |
| 3 | US20040263856A1 | Photonic crystal interferometric fiber optical gyroscope system | 87 |
| 4 | US4735506A | Phase nulling optical gyroscope | 64 |
| 5 | US20110255094A1 | Optical gyroscope sensors based on optical whispering gallery mode resonators | 54 |
| 6 | US20190101392A1 | Multilayer waveguide optical gyroscope | 50 |
| 7 | US5719674A | Process for measuring rotation speeds about several axes, and a multiplexed multi-axial gyrofiber allowing th… | 50 |
| 8 | US4545682A | Optical gyroscope | 40 |
| 9 | US20150022818A1 | Laser-driven optical gyroscope with push-pull modulation | 36 |
| 10 | US20200386944A1 | Single-layer and multi-layer structures for integrated silicon photonics optical gyroscopes | 33 |
Citation counts favour older, more searched records and should be read as a signal of influence within this corpus, not as a measure 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 →What the numbers mean for a filing decision
Three patterns worth acting on before drafting new claims in this space.
A defined leadership tier, not a flat field
The top 5 assignees hold 205 of the 362 records in scope and the top 10 hold 238, or 65.7%. That leaves a long tail of single- and few-filing entrants below the tenth position, which sits at just 5 records — useful context for anyone assuming this is an open field.
Post-peak cooling, not collapse
Filings peaked at 55 in 2023 after climbing steadily from 15 in 2017. The drop from 34 (2021) to 22 (2024) is real, but 2025-26 counts are structurally incomplete because of the roughly 18-month publication lag, so treat the recent years as filling in rather than as evidence of a stalled field.
Gyroscope claims are the dense zone
Nearly all records carry a G01C classification, confirming rotation-sensing claims are the crowded core. Optical modulation and control (G02F, 6.6%) and general measurement recording (G01D, 1.7%) carry far fewer records relative to their technical importance in bias correction and readout, suggesting thinner prior art in those adjacent layers.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to optical and atomic inertial sensing, with the prior art for and against each one.
Who is filing, and where the gate sits
Leadership in this landscape is held by a small group of established navigation and photonics firms plus a handful of university and research-institute filers; commercial newcomers face a real filing gate around resonator integration and cold-atom source packaging.
Established navigation and photonics incumbents set the pace
The leading assignee holds 86 records, well ahead of the field, reflecting decades of fiber-optic and ring-laser gyroscope claim-building that newer photonic-integration entrants must design around.
A long tail below the top ten
Below the top 10 (65.7% of records), the ranking thins quickly to single- and double-digit filers, including university labs and specialist photonics startups. That tail is where niche claims on cold-atom sources and integrated resonator fabrication tend to sit.
Several top filers show no latest-year activity
Multiple leading assignees, including large incumbents and university groups, show zero filings in the latest tracked year with year-over-year drops reported as -100% for some. Given publication lag, this reads as a reporting gap rather than confirmed withdrawal from the field.
| Assignee | Recent year | YoY |
|---|---|---|
| Anello Photonics Inc. | 0 | -100% |
| Honeywell International Inc. | 0 | -100% |
| The Board of Trustees of the Leland Stanford Junior University | 0 | — |
| California Institute of Technology | 0 | — |
| YAO XIAOTIAN STEVE | 0 | — |
| Zhejiang University | 0 | -100% |
| DRS Network & Imaging Systems LLC | 0 | -100% |
| UK Space Public Limited Company | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio benchmarking or identifying where to file next.
Map freedom-to-operate around the leading resonator claims
With G01C claims covering 91.4% of records, a targeted search against the leading assignees' resonator and bias-correction filings is the first check before drafting new gyroscope hardware claims.
Run a freedom-to-operate search in EurekaTrack the cooling in filing momentum by assignee
Several top filers show zero activity in the latest tracked year. Confirming whether that reflects publication lag or a genuine pullback matters for competitive positioning.
Set up assignee monitoring in EurekaScope claims in the under-claimed adjacent layers
G02F modulation and G01D measurement carry far fewer records than G01C despite their role in bias control and readout — a plausible filing gap worth scoping before committing R&D budget.
Explore white space in EurekaCommon questions about this landscape
The dataset's leading assignee holds 86 of the 362 records in scope, well ahead of the rest of the ranked field. The top 5 assignees combined hold 205 records, or 56.6% of all records, and the top 10 hold 238, or 65.7%. Below that tenth position, which sits at just 5 records, the field spreads into a long tail of university labs and specialist photonics firms with far fewer filings each.
Filings peaked at 55 in 2023 after rising from 15 in 2017, then fell to 22 by 2024 — a 35% drop from the 2021 level of 34. However, publication typically lags filing by around 18 months, so the 2025 and 2026 counts in any dataset are still incomplete and should not be read as confirmation of a continuing decline. The honest read is a post-peak cooling through the last complete year, 2024, with the trend beyond that still forming.
G01C, covering distance, navigation and gyroscopes, appears in 91.4% of the 362 records in scope, making rotation-sensing claims the densest area by far. G02B optical elements follow at 32.0% and H01S lasers at 13.0%. Because a single record can carry multiple IPC classes, these shares add up to more than 100% and should be read as overlapping coverage rather than a strict breakdown.
Relative to their technical importance, optical control and modulation (G02F, 6.6% of records) and general measurement recording (G01D, 1.7%) carry comparatively thin claim density next to the crowded G01C core. Sub-areas such as microheater-based path-length modulation, cold-atom source miniaturisation and SWaP-optimised packaging for field deployment show fewer filings relative to their role in making these sensors deployable outside the lab. That gap is a reasonable starting point for scoping new claims, though it should be verified against a live freedom-to-operate search.
Not necessarily. Citation counts inside a searched patent corpus accumulate over time, so older records such as the most-cited filings in this dataset have simply had longer to be cited, regardless of current commercial relevance. They are a useful signal of historical influence on the field's claim language, but a newer, less-cited filing can still be the one that matters for a current design-around analysis. Treat citation rank and commercial importance as related but distinct measures.
Research Optical and Atomic Inertial Sensing in depth with Eureka
Go past this page: query the whole optical and atomic inertial sensing 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.