Tower Crane Systems Patents: Who Leads, Where the Gaps Are 2026
Tower Crane Systems Patents: Filing Trends and Who Holds the Claim Space
A leader with 8 records sits atop a field of 69 ranked assignees, but the top 5 combined account for only 29.1% of the 110 records in scope — concentration without dominance. Filings rose to a peak of 15 records in 2021, then fell to 7 by 2024 — a -53% change over that three-year span. 2025 and 2026 are shown but should be read as incomplete, since publication typically lags filing by around 18 months.
- 1MANITOWOC CRANE GROUP FRANCE8
- 2TADANO LTD7
- 3FUJITEC CO LTD6
- 4ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD6
- 5SINTOKOGIO LTD5
See the full tower crane systems 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 on tower crane patents
Who are the leading patent holders in tower crane systems?
The dataset ranks 69 assignees across 110 records, with the leading company holding 8 records and the top 5 combined reaching 29.1% of all records in scope. That means leadership exists but is not dominant — most of the field is held by companies with only one or two filings each. Anyone assessing freedom to operate should look at the full ranked list rather than assume a handful of large players control the space.
Is tower crane patent filing activity growing or slowing?
Filing peaked at 15 records in 2021 and had fallen to 7 records by 2024, a -53% change over that span. Figures for 2025 and 2026 should not be read as a further decline, because publication typically lags filing by around 18 months and those years are still filling in. The honest read is a cooling mechanical-claims cycle rather than a shrinking field.
What technology areas dominate tower crane patents?
B66C, the cranes and hoists subclass, appears in 69.1% of the 110 records in scope, making it by far the dominant category. Winches (B66D, 12.7%) and lifts (B66B, 10.0%) follow well behind, with foundations, specialised structures, digital data processing and metal working each under 10%. Because a single record can carry multiple IPC classes, these figures overlap and do not sum to 100%.
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 Tower Crane Systems 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.