Industrial Pipe Insulation Patents: Who Leads, Where Gaps Remain 2026
Industrial pipe insulation and corrosion-under-insulation patents: who holds the ground and where it's still open
62.2% concentration. The top 5 of 32 ranked assignees account for 92 of the 148 records in scope, with a long tail of single- and double-filing entrants below. Filings rose from 6 in 2017 to a peak of 31 in 2020, then fell to 12 by 2021 and 4 by 2024 — a 67% decline over that three-year window. Treat 2025 and 2026 as incomplete rather than as a continuation of the drop, since publication lag has not caught up with those filing years yet.
- 1SAUDI ARABIAN OIL CO31
- 2SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV20
- 3ARIX TECHNOLOGIES INC14
- 4NITROGAS AS14
- 5INDUSENZ AS13
See the full industrial pipe insulation and corrosion under insulation analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about this landscape
Who holds the most patents in corrosion-under-insulation detection?
One assignee leads the ranked field with 31 records, well ahead of the fifth-placed company at 13. The top five assignees together hold 92 of the 148 records in scope, or 62.2%, which is meaningful concentration but still leaves a long tail of smaller filers with only a handful of records each. This pattern typically reflects large process-industry operators building internal inspection programs alongside smaller specialist inspection-technology firms filing narrower claims.
Is patent filing in this space growing or slowing down?
Filing peaked in 2020 at 31 records and has since fallen, dropping 67% between 2021 (12 records) and 2024 (4 records), which is the most recent year that can be treated as complete. Figures for 2025 and 2026 are still low, but that is expected: publication typically lags actual filing by around 18 months, so those years will keep filling in. It is more accurate to describe the field as past its filing peak than as actively accelerating right now.
What technology areas dominate corrosion-under-insulation patents?
Material analysis and testing (IPC class G01N) appears in 63.5% of the 148 records in scope, making sensing and diagnostic methods the dominant claim area. Pipe and fitting hardware (F16L) covers 23.0% of records, and AI-based computing methods (G06N) appear in 12.2%. Because a single record can carry multiple IPC classes, these percentages do not sum to 100% and should be read independently against the full record count.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Industrial Pipe Insulation and Corrosion Under Insulation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.