Road Roller and Intelligent Compaction Patents: Who Leads 2026
Road Roller and Intelligent Compaction Patents
Concentrated at the top. the five most active filers together hold 56.9% of all 58 records in scope, and the top ten hold 79.3% — this is a field with a short list of entrenched claimants. Filings rose from nothing in 2017 to a peak of 14 in 2019, then settled into a lower, flatter pattern; the leading-rate comparison of 2021 (5) against 2024 (5) shows 0% growth over that span. Treat 2025 and 2026 as still filling in rather than as a real slowdown, since publication lags filing by roughly 18 months.
- 1HITACHI CONSTRUCTION MACHINERY CO LTD12
- 2BEIJING BAIDU NETCOM SCI & TECH CO LTD6
- 3CATERPILLAR PAVING PROD INC5
- 4RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD5
- 5CHINA ACADEMY OF RAILWAY SCI CORP LTD5
See the full road roller and intelligent compaction 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 road roller and intelligent compaction?
The ranked leader in this dataset holds 12 of the 58 records in scope, more than double the fifth-placed assignee’s 5. The top five assignees combined hold 56.9% of all records, and the top ten hold 79.3%, so the field is concentrated among a small group of construction-equipment OEMs and Chinese railway research institutes. Anyone planning to file in this space should review the leader’s claim family first, since it covers the largest share of occupied claim space.
Is patent filing in intelligent compaction growing or slowing down?
Filing peaked in 2019 at 14 records and has since flattened, with the leading-rate comparison showing 0% growth between 2021 and 2024 (5 filings each year). The apparent decline in 2025 and 2026 is largely an artefact of publication lag, since publications trail filing by roughly 18 months, so those most recent years should not yet be read as a real slowdown. Overall the trend looks like a plateau rather than sustained growth or decline.
What patent classes cover intelligent compaction technology?
The dominant classes are E01C (roads and pavements, 37.9% of records) and E02F (excavating and earth moving, 29.3%), reflecting the mechanical compactor base. Positioning and sensing classes are also well represented: G01S (radar, sonar and positioning) appears on 24.1% of records, and G01C (navigation) and G06T (image processing) each appear on 15.5%. Because records often carry multiple classes, these shares add up to more than 100% of the 58 records in scope.
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 Road Roller and Intelligent Compaction 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.