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Run your analysis now →Filing growth compares 2021 (10 records) with 2024 (2) — 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 67 records in scope (CR5), not by the ranked leaders only.
Spinal navigation and robotics sits at the intersection of surgical imaging, registration algorithms and robotic manipulation. The dataset covers 67 published records filed between 2015 and mid-2026, searched against terms spanning registration methods, reference frames, screw breach rate, workflow time, radiation dose and cost justification — the practical metrics that decide whether a navigation or robotic system gets adopted in the operating room, not just whether it works in a lab. Patent families, not raw filings, are the fairer unit here because they neutralise continuation practice and multi-jurisdiction filing strategies common among the larger medical device assignees.
Filing activity peaked in 2021 and has since declined through the last complete year of data, 2024, though the most recent two years are understated because publication typically lags filing by around 18 months. The receiving-office spread — concentrated in the United States, WIPO and Europe — tracks the major device markets rather than any single national push.
Pick a task. Every answer cites the patents behind it.
Two views of the same 67 records: how filing activity has moved year over year, and which IPC subclasses the claims actually sit in.
Filings rose from zero in 2017 to a peak of 10 in 2021, then fell to 2 by 2024 — an -80% change over that three-year window. Treat 2025 and 2026 as incomplete rather than as evidence of a further slide, since publication lag means recent filings have not all surfaced yet.
A61B (diagnosis & surgery) covers 95.5% of the 67 records, confirming this is fundamentally a surgical-instrument field. G16H (healthcare informatics, 14.9%), G06T (image processing, 11.9%) and H04N (pictorial communication, 10.4%) show a secondary cluster around image-driven registration, while B25J (manipulators & robots, 6.0%) and A61F (implants, 6.0%) remain comparatively under-claimed relative to how much attention robotic spine systems get commercially.
Shares are the percentage of the 67 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
This page is one run against one query. Ask Eureka your own question about spinal navigation and robotics and every answer comes back with the patent numbers behind it.
Try EurekaThe method generates an initial object posture and initial front/lateral postures of an X-ray machine, performs registration optimization on the object posture and on the lateral posture, and integrates the resulting target postures with the initial front posture to complete registration — a workflow aimed at reducing the manual alignment steps that drive up radiation dose and workflow time in image-guided spine surgery.Filed by Tinavi Medical Technologies, published 2025-03-27.


| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6782287B2 | Method and apparatus for tracking a medical instrument based on image registration | 605 |
| 2 | US20020077543A1 | Method and apparatus for tracking a medical instrument based on image registration | 275 |
| 3 | US20110218546A1 | Device for controlled adjustment of a surgical positioning unit | 80 |
| 4 | US8974460B2 | Device for controlled adjustment of a surgical positioning unit | 50 |
| 5 | US20210282862A1 | Robotic surgical system | 46 |
| 6 | US20240041558A1 | Video-guided placement of surgical instrumentation | 37 |
| 7 | WO2002000103A2 | Method and apparatus for tracking a medical instrument based on image registration | 34 |
| 8 | US20200197100A1 | Systems and methods for performing intraoperative surface-based registration and navigation | 31 |
| 9 | US20210045813A1 | Systems, devices, and methods for surgical navigation with anatomical tracking | 17 |
| 10 | US20180368918A1 | Utilization of laser interstitial thermotherapy guided with real time thermal MRI | 13 |
Citation counts reward older filings simply for having more time to accumulate citations within the searched corpus — read them as a signal of influence on later filers, not as a ranking of current technical importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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 →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 →Three findings that shape where a new filer should and should not spend claim-drafting effort.
The top 5 assignees account for 55.2% of all 67 records in scope, and the top 10 for 85.1%. With 28 companies ranked in total, that leaves a long tail of single- or few-filing entrants competing for the remaining share — a pattern typical of a field anchored by a handful of established navigation and robotics platforms.
Records fell from a peak of 10 in 2021 to 2 in 2024, an -80% change over that span. Because publication lags filing by roughly 18 months, 2025-2026 numbers are still incomplete and should not be read as confirmation the field has gone quiet.
A61B covers 95.5% of records, confirming the field is anchored in surgical instrumentation and navigation. B25J, the manipulator/robotics class, appears in only 6.0% of records — a gap worth noting for anyone filing robotic manipulation claims specifically rather than navigation or registration claims.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to spinal navigation and robotics, with the prior art for and against each one.
The leader in the ranking holds 11 records; fifth place holds 4 and tenth place also holds 4 — a steep drop after the top few names, then a plateau across the rest of the ranked group.
The top-ranked assignee holds 11 of the 67 records, roughly double the fifth-place count of 4. That gap suggests an early and sustained filing programme rather than a single burst of activity.
Fifth place and tenth place both hold 4 records each, meaning the drop-off from the leader happens fast and then the field flattens across a wide group of similarly sized filers through the top 10.
Ten co-assignee pairs appear in the data, with the strongest links running between a national research centre, a national health-research institute and a spine-device specialist — evidence that some of the more academically-driven filings in this space are joint efforts rather than solo corporate programmes.
| Assignee | Recent year | YoY |
|---|---|---|
| Warsaw Orthopedic, Inc. | 0 | -100% |
| 3Spine Inc. | 0 | — |
| BLUE ORTHO | 0 | — |
| 7D Surgical ULC | 0 | — |
| Medtronic Navigation, Inc. | 0 | — |
| The Board of Trustees of the Leland Stanford Junior University | 0 | — |
| Centre National de la Recherche Scientifique (CNRS) | 0 | — |
| Institut National de la Santé et de la Recherche Médicale (INSERM) | 0 | — |
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio strategy, or spotting a filing opportunity.
The highest-cited filings in this dataset centre on image-registration tracking and controlled positioning-unit adjustment — both foundational to nearly any navigation or robotic workflow. Any new registration or reference-frame method should be checked against these specifically.
Run a freedom-to-operate check in EurekaB25J robotics claims and radiation-dose workflow claims sit well below the field's overall filing density. A first-filer advantage may still be available in those specific sub-areas rather than in the crowded A61B core.
Explore white space in EurekaThe assignee ranking covers 28 companies built from 67 published records, and it is concentrated rather than evenly spread: the top 5 assignees combined hold 55.2% of all records, and the top 10 hold 85.1%. The single leading assignee holds 11 records, well ahead of fifth place at 4. This means a small number of established medical device and navigation companies have shaped most of the claim space, while the remainder of the ranking consists of companies with only a handful of filings each.
Filing activity peaked in 2021 at 10 records and had fallen to 2 records by 2024, an -80% change over that three-year window. However, because patent publication typically lags actual filing by around 18 months, the 2025 and 2026 figures in any dataset are necessarily incomplete and should not be read as proof the field is cooling further. The safest read is that the field passed a filing peak around 2021 and has settled to a lower but still active rate through the last complete year of data.
The overwhelming majority — 95.5% of the 67 records — carry the A61B classification for diagnosis and surgery, confirming this is fundamentally a surgical-instrumentation field. Secondary clusters appear around healthcare informatics (G16H, 14.9%), image data processing (G06T, 11.9%) and pictorial communication or video (H04N, 10.4%), reflecting the role of image-guided registration. Robotics-specific manipulator claims (B25J) and implant-integration claims (A61F) each appear in only 6.0% of records, which is comparatively thin given how central robotic manipulation is to commercial systems.
Based on the IPC composition, the clearest gaps sit in robotic manipulator kinematics (B25J, only 6.0% of records), radiation-dose reduction workflows, and implant-integrated navigation feedback (A61F, also 6.0%) — all filed at much lower density than the dominant A61B surgical-instrument claims. Video-based intraoperative registration under H04N also remains a relatively open sub-area at 10.4%. These are not guarantees of a clean freedom-to-operate position, but they are areas where the existing claim density is measurably lower than the field average.
Both patterns appear in the data. Ten co-assignee pairs exist across the dataset, with the strongest recurring links involving a national research centre, a national health-research institute and a spine-device specialist, each pairing appearing on 4 shared records. This suggests a meaningful share of the more research-driven filings — particularly around registration methods and reference frames — are joint efforts between academic or public research bodies and commercial device makers, rather than filed by either type of entity alone.
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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.