Pipeline Integrity Patents: Top Companies & Filing Trends 2026
- Filing peaked in 2018 at 21 families, then flattened through the 2022 midpoint of 14 — this is a mature, not a growing, claim space.
- G01M testing-and-structure claims cover 100 of 153 records, meaning most of the crowding sits in physical test rigs and sensing hardware, not software analytics.
- The United States (47 filings) leads receiving offices by nearly 3x over China or India, with Canada a close second at 17 — a signal of where enforcement risk concentrates.
What this landscape covers
This dataset tracks patent families addressing pipeline integrity monitoring — in-line inspection tools, corrosion monitoring, leak detection and crack detection — filed against IPC classes covering pipeline transport, material testing and measurement structures. It spans filings from 2015 through the middle of 2026, with 153 total families forming the ranking base. Because publication typically lags filing by around eighteen months, the 2025 and 2026 counts in any trend chart understate real filing activity.
The technology composition leans heavily toward physical test and measurement claims: G01M and G01N subclasses alone account for the majority of records, ahead of F17D pipeline-transport claims and F16L pipe-fitting hardware. That distribution says more about where claim space is occupied than about where the underlying engineering problem is hardest.
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Filing trend and technology composition
Two views of the same 153-family dataset: how filing volume moved year over year, and how those families split across IPC subclasses.
A peak in 2018, then a plateau
Filings rose from 3 in 2017 to a peak of 21 in 2018, then settled near the 2022 midpoint of 14 rather than continuing to climb. That pattern reads as a technology area that reached its first wave of claim staking early and has not seen a comparable second wave since — flat-to-declining activity into the most recent, still-incomplete year.
Testing and measurement dominate the classification mix
G01M (testing machines and structure balance) appears in 100 of 153 records and G01N (material analysis and testing) in 65, well ahead of F17D pipeline-transport claims at 43. F16L pipe fittings, G01B dimensional measurement, G01C navigation/gyroscope sensing, G01P velocity sensing and G06K data recognition round out a much thinner tail — evidence that data-processing and navigation-assisted inspection claims are comparatively sparse next to the hardware-heavy core.
Shares are the percentage of the 153 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Pipeline Integrity Monitoring Pipeline Integrity with Eureka
This page is one run against one query. Ask Eureka your own question about pipeline integrity monitoring pipeline integrity and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this space
Apparatus for pipeline inspection and method of assembly (CA2763387A1)
The filing describes an in-line inspection tool built around a channel for pipeline fluid flow, a flow control valve assembly with a movable valve member and a fluid-filled chamber, and an electrical linear actuator located inside that chamber to drive the valve between open and closed positions.Abstract text condensed from the original filing for readability.
View full filing| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5072622A | Pipeline monitoring and leak containment system and apparatus therefor | 167 |
| 2 | US20170097274A1 | Gas-mapping 3D imager measurement techniques and method of data processing | 126 |
| 3 | US20160231279A1 | Linkage assembly for in-line inspection tool | 85 |
| 4 | US20190360976A1 | Pipeline inspection systems and methods | 80 |
| 5 | US20100199767A1 | In-line inspection tool for pipeline integrity testing | 47 |
| 6 | US20110041612A1 | Pipeline inspection apparatus and method | 43 |
| 7 | US20220276116A1 | Non-intrusive integral system for pipelines monitoring in real time | 35 |
| 8 | US9721448B2 | Wireless communication systems for underground pipe inspection | 31 |
| 9 | US9970756B2 | High-sensitivity gas-mapping 3D imager and method of operation | 30 |
| 10 | US20180216932A1 | High-sensitivity gas-mapping 3D imager and method of operation | 29 |
Citation counts reflect influence within the searched corpus and favour older filings; treat them as a signal of what shaped later claim drafting, not of what is currently most relevant.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the filing pattern tells a decision-maker
Three read-throughs from the trend, classification and geography data above.
The first wave has not repeated
Filing activity peaked in 2018 and has not returned to that level since; the 2022 midpoint of 14 sits well below peak. New entrants competing on the same in-line inspection hardware are filing into a plateaued space rather than a growing one.
Hardware test rigs, not analytics, own the claim space
Two-thirds of records sit in testing-machine and material-analysis subclasses. Software-driven crack and leak detection algorithms occupy a much smaller share, suggesting analytics claims face less prior art density than physical sensor and rig designs.
US filings lead by a wide margin
The United States receives close to three times the filings of the next-largest office. Canada, China, India and the WIPO PCT route each sit in a narrower band, which matters for where freedom-to-operate risk is highest versus where filing is comparatively thin.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to pipeline integrity monitoring pipeline integrity, with the prior art for and against each one.
Assignee landscape and momentum
Citation leaders and recent filing momentum point in different directions here — several historically active assignees show no filings in the latest tracked year, consistent with a plateaued field rather than one with an active new leader.
Historic filers have gone quiet
Assignees including Bridger Photonics, PII Limited, General Electric, TDW Delaware and PII Pipetronix show zero filings in the most recent tracked year, with Bridger Photonics down 100% year-on-year. That does not mean these firms have exited the space — publication lag means recent filings may not yet be visible — but it does mean the visible ranking reflects earlier activity more than current strategy.
Collaboration is limited and individual-led
The strongest co-assignee pairing links two named individual inventors rather than two corporate assignees, and the next-strongest pairing repeats a variant of that same individual pairing. Cross-company joint filing is not a defining feature of this landscape.
Early filings still anchor the field
The most-cited record in the corpus dates from the early 1990s and remains the reference point cited by later in-line inspection and leak-detection filings. High citation counts here reflect age and foundational status more than current commercial relevance.
| Assignee | Recent year | YoY |
|---|---|---|
| BRIDGER PHOTONICS INC | 0 | -100% |
| PII Limited | 0 | — |
| General Electric Company | 0 | — |
| TDW Delaware, Inc. | 0 | — |
| WHITEHEAD JOHN A | 0 | — |
| PII PIPETRONIX | 0 | — |
| ENTEGRA LLP | 0 | — |
| Avanti International Technology, Inc. | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, whitespace filing, or tracking a specific competitor.
Run a freedom-to-operate check on the G01M cluster
With 100 of 153 records sitting in testing-machine and structure-balance claims, any new in-line inspection hardware design should be checked against this cluster specifically before committing to a rig architecture.
Explore in EurekaMap the thinner data-recognition branch
G06K-classified records are a fraction of the corpus. If automated defect classification is part of the roadmap, that branch is worth a closer look for both whitespace and for the few filings that do exist there.
Explore in EurekaTrack quiet assignees for renewed activity
Several previously active assignees show no recent-year filings. Given publication lag, a fresh pull closer to the next data cut-off may reveal renewed activity that is not yet visible in this snapshot.
Explore in EurekaCommon questions on pipeline integrity monitoring patents
This dataset identifies 153 patent families filed between 2015 and mid-2026 that match claims around in-line inspection tools, corrosion monitoring, leak detection and crack detection under the relevant IPC classes. That figure counts families rather than raw published documents, which is the fairer unit since it removes duplication from continuation filings and multiple jurisdictional copies of the same invention. Because publication lags filing by roughly eighteen months, the true count for 2025 and 2026 filings will rise as more records publish.
Filing activity peaked in 2018 at 21 families and has since flattened, sitting at 14 by the 2022 midpoint rather than continuing to climb. That pattern indicates a technology area that saw an initial wave of claim staking and has not seen a comparable second wave since. It does not mean innovation has stopped, but it does mean new filers are entering a claim space that is more crowded at the core than it was a decade ago.
G01M, covering testing machines and structure balance, appears in 100 of the 153 tracked records, making it the single largest classification bucket. G01N material analysis and testing follows at 65, and F17D pipeline transport at 43. Classes tied to data processing and navigation-assisted sensing, such as G06K and G01C, see markedly less activity, which is where claim space is comparatively less occupied.
The United States is the leading receiving office with 47 filings in this dataset, followed by Canada at 17, and China and India each at 16, with the WIPO PCT route also at 16. That concentration in the US matters for freedom-to-operate assessments, since enforcement risk is highest where filing density is highest. Filers targeting Asian or European markets specifically should note the comparatively thinner filing base there relative to North America.
CA2763387A1, assigned to PII Limited, describes an in-line inspection tool with a fluid flow channel, a flow control valve assembly incorporating a fluid-filled chamber, and an electrical linear actuator located inside that chamber to drive valve movement. It is a representative example of the hardware-centric claim style that dominates this landscape's G01M cluster. Anyone designing a new in-line inspection tool with an internal actuator-driven valve mechanism should review this filing's claim scope closely before finalising a design.
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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.