Fluid-Power Systems Patents: Top Companies & Filing Trends 2026
Fluid-Power Systems Patents: Who Leads and Where the Claim Density Sits
No single company dominates. the leader holds 72 records against 2,386 in scope, and the top 5 combined account for just 10.2% of the field. Filings ran from 31 in 2017 to a peak of 48 in 2019, then settled into a steadier band; the 2021-to-2024 span shows 18% growth, from 28 to 33 records. 2025 and 2026 figures are still incomplete because publication typically lags filing by around 18 months, so the apparent drop toward 2026's 5 records should not be read as a slowdown.
- 1CATERPILLAR INC3.0%
- 2BAKER HUGHES CO2.1%
- 3PARKER HANNIFIN CORP2.1%
- 4CLEARMOTION INC1.6%
- 5CASCADE CORPORATION1.5%
See the full fluid-power systems patent landscape 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 fluid-power systems patents
Who holds the most fluid-power systems patents?
The leading assignee in this dataset holds 72 records out of 2,386 in scope, which is the largest single share but still a small fraction of the field. The top 5 assignees combined reach only 10.2% of all records, and the top 10 reach 16.5%. In practice this means ownership is spread across a long tail of companies rather than concentrated in one or two dominant filers, so a freedom-to-operate review needs to look well beyond the largest names.
Is fluid-power systems patent filing growing or slowing down?
Filing volume grew 18% between 2021 and 2024, rising from 28 to 33 records, and 2024 is the most recent year that can be treated as a complete data point. Counts appear to drop sharply in 2025 and 2026, but that reflects the roughly 18-month lag between filing and publication rather than an actual decline in activity. Anyone judging momentum from this dataset should anchor on the 2021-to-2024 trend rather than the final one or two years shown.
Which technology area has the densest patent coverage in fluid-power systems?
F15B, covering fluid-pressure actuators and systems, is the densest single IPC subclass, appearing in 20.0% of all 2,386 records. E21B (earth and rock drilling) follows at 14.6% and F04B (positive-displacement pumps) at 9.7%. Because records often carry more than one IPC class, these figures should be read as independent shares of the same 2,386-record base, not as slices of a single pie that sums 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 Fluid-Power Systems Patent Landscape covering 2015–2026, data cut-off 2026-08-31. 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.