Pneumatic Cylinders and Actuators Patents: Leaders & White Space 2026
- Leadership is shallow, not absent. the top 5 assignees hold 29.5% of all 78 records in scope, and the top 10 hold 46.2% — concentrated enough to matter, but with more than half the field still spread across a long tail of single- and double-filing entrants.
- Filing activity peaked in 2021 at 3 records and fell to 0 by 2024 (-100% over that span); 2025-2026 figures are still filling in as publication catches up with filing, so this should read as a lull, not a verdict.
- F15B (fluid-pressure actuators) covers 48.7% of records while adjacent classes like valves (F16K), manipulators (B25J) and plastics shaping (B29C) each sit at 5.1% or below — real activity, but nowhere near saturated.
Filing growth compares 2021 (3 records) with 2024 (0) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 78 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape tracks 78 published records matching pneumatic cylinder and pneumatic actuator design terms, filtered further to documents addressing seal friction, end cushioning, rod buckling, stroke accuracy, air consumption or mounting stiffness. That combination narrows the set to engineering-level filings rather than every pneumatics-adjacent patent, which is why the total is modest relative to the broader fluid-power field. The scope runs from 2015 through the 2026-07-31 cut-off, with the most recent one to two years understated because publication typically lags filing by around 18 months.
Coverage spans receiving offices in the United States, Japan, Europe, India, Norway and Russia, giving a genuinely cross-jurisdictional read on where this engineering problem is being claimed rather than a single-market snapshot.
Filing trend and technology composition
Two views of the same 78 records: how filing activity has moved year over year, and which IPC subclasses the underlying inventions actually sit in.
A single peak, then a drop-off still being revised
Filings rose from 0 in 2017 to a peak of 3 in 2021, then fell to 0 by 2024 — a -100% move over that three-year span. Because 2025 and 2026 are still incomplete in the data, this reads as a pause in a small-volume field rather than confirmed decline; a handful of newly published families could change the shape of the last two years materially.
Fluid-pressure actuation dominates; everything else is a satellite
F15B (fluid-pressure actuators and systems) appears in 48.7% of the 78 records, by far the largest single class. C25C (electrolytic metal production, 12.8%) and H02K (electric motors and generators, 10.3%) follow — both signalling actuator use inside heavier industrial processes rather than actuator-only invention. Hand tools, manipulators, plastics shaping, presses and valves each sit at 5.1%, showing pneumatic cylinder technology diffusing into adjacent equipment classes without deep claim density in any one of them yet.
Shares are the percentage of the 78 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Pneumatic Cylinders and Actuators with Eureka
This page is one run against one query. Ask Eureka your own question about pneumatic cylinders and actuators and every answer comes back with the patent numbers behind it.
Try EurekaThe records other filings build on
WO2022232953A1 — Pneumatic cylinder assembly with reduced air consumption
A pneumatic double-acting cylinder assembly is described where air consumption is strongly reduced compared with a classical cylinder of volume V. The design splits the cylinder into two chamber pairs: one of roughly V/2 that produces constant-pressure displacement work like a normal double-acting cylinder, and a second of roughly N*V/2 where the thermodynamic energy of the pressurised air is recovered by expansion rather than vented to atmosphere.Filed by RUFER, ALFRED — published 2022-11-10.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5270625A | Pneumatic/electric actuator | 50 |
| 2 | US6436270B1 | Method and device for controlling the movement of a feeding and breaking chisel in an aluminum production cell | 36 |
| 3 | US5065665A | Directional control valve for pneumatic cylinder | 23 |
| 4 | US4281852A | Motion converting system | 23 |
| 5 | US4170876A | Method and apparatus for controlling a press plunger system | 23 |
| 6 | US20160230786A1 | Hydraulic pressure generation unit with pneumatic actuation | 18 |
| 7 | WO2001006039A1 | Method and device for controlling the movement of a supply and breaking chisel in an aluminium production cell | 18 |
| 8 | EP0787563A1 | Hydropneumatic riveting gun | 18 |
| 9 | US8091195B2 | Trigger device for a rivet gun and a rivet gun handle assembly with a trigger device | 15 |
| 10 | US4530224A | Strip-guide assembly for a metal strip coiler | 13 |
Citation counts reflect influence inside this searched corpus and skew toward older filings — treat them as a signal of what later inventors had to design around, not of current market relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three readings of the same dataset, aimed at where they change a filing or freedom-to-operate decision.
Leadership exists, but it is not a moat
The top 5 assignees together hold 29.5% of all 78 records and the top 10 hold 46.2%. That leaves well over half the field distributed across a long tail of entrants filing once or twice — a structure that rewards a well-drafted claim more than it rewards scale.
A quiet field, not a dead one
Filing peaked at 3 records in 2021 and dropped to 0 by 2024, a -100% move. In a dataset this size, three or four newly published families in 2025-2026 would visibly reshape the picture, so treat the recent trend as provisional rather than a settled decline.
One core class, several satellites
F15B (fluid-pressure actuators) covers roughly half of all records. The next largest classes — electrolytic metal production and electric motors — reflect pneumatic actuation embedded in heavier industrial processes rather than actuator-specific claims, which is where the genuine white space sits.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to pneumatic cylinders and actuators, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Rexroth Mecman | SANDER LARS GORAN | 1 |
The strongest co-assignee pairing in this dataset appears once, which tells you most of this work is filed by single entities rather than through joint development agreements.
Who is actually filing
The ranked leaders here are counted in records, not weighted by family size, and the list covers all 63 ranked companies the dataset returns — not a top-50 or top-100 cut.
A clear but narrow lead
The top-ranked assignee holds 10 of the 78 records in scope. By fifth place that figure has already dropped to 3, and by tenth place to 2 — a steep drop-off that suggests the leadership gap is real but shallow.
No leader shows fresh momentum yet
Every assignee tracked for recent-year momentum shows 0 filings in the latest year on record. That is consistent with the broader filing lull rather than any single company stepping back, and is likely to shift once 2025-2026 publications catch up.
Filing is split across three major offices
The United States, Japan and the European Patent Office each carry a meaningful share of receiving-office volume, with India and Russia contributing smaller but non-trivial counts. No single jurisdiction dominates the way a leader-heavy field would suggest.
| Assignee | Recent year | YoY |
|---|---|---|
| Rexroth Mecman | 0 | — |
| Sumitomo Metal Industries, Ltd. | 0 | — |
| HIROTAKA MFG | 0 | — |
| Shoku Co., Ltd. | 0 | — |
| OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOSTYU KAMOTSTSI PNEVMATIKA | 0 | — |
| NEMA ERCIO MIGUEL | 0 | — |
| FAR SRL | 0 | — |
| System Machinery Automation Components Corporation | 0 | — |
Where to take this analysis
The dataset points to specific follow-up work depending on whether you are scoping freedom-to-operate or looking for a filing gap.
Check citation chains before drafting claims
The most-cited records in this set, several from the 1980s and 1990s, still anchor later filings on directional control valves and motion-converting mechanisms. Any new claim in those areas should be checked against them directly rather than against recent filings alone.
Trace citation history in EurekaModel the under-claimed branches as a first-filing opportunity
Classes sitting at 5.1% of records — valves, manipulators, plastics shaping, presses — have real but thin coverage. A claim drafted specifically around one of these combined with air-consumption or end-cushioning limitations has more room to stand alone than a general fluid-pressure actuator claim.
Draft a claim scope in EurekaRe-run the trend once 2025-2026 publications land
The apparent drop to 0 filings by 2024 is real for that year, but the current lull should be re-tested once the publication lag closes. A small absolute change in filing counts will move the percentages meaningfully in a dataset this size.
Set a filing-trend alert in EurekaCommon questions on this landscape
The dataset ranks 63 companies by record count, with the leader holding 10 of the 78 records in scope and the field dropping to 3 records by fifth place and 2 by tenth. That is a real but shallow lead rather than dominant control: the top 10 combined hold 46.2% of all records, leaving more than half the field distributed among a long tail of smaller filers. Anyone assessing competitive risk should look at both the leader's specific claim scope and the broader spread, since a narrow lead can still be defended aggressively in its core area.
Filings peaked at 3 records in 2021 and fell to 0 by 2024, a -100% move over that span, which is the most recent period the dataset treats as complete. Because patent publication typically lags filing by around 18 months, 2025 and 2026 figures are still incomplete and should not yet be read as confirmation of a continued decline. In a field this size, a handful of newly published filings could change the recent-year picture substantially.
F15B, the IPC subclass covering fluid-pressure actuators and systems, appears in 48.7% of the 78 records in scope, making it by far the densest claim area. Electrolytic metal production (C25C, 12.8%) and electric motors and generators (H02K, 10.3%) follow, reflecting pneumatic actuation embedded in heavier industrial equipment rather than actuator-only inventions. Hand tools, manipulators, plastics shaping, presses and valves each sit at only 5.1%, marking them as active but far less contested.
The classes furthest from the F15B core — valves, robotic manipulators, plastics shaping equipment and presses — each account for just 5.1% of records, meaning claim space there is comparatively open. Combining one of these mechanical contexts with a specific technical limitation such as air-consumption reduction, end-cushioning geometry or mounting-stiffness tuning gives a narrower but more defensible first claim than competing directly in the crowded fluid-pressure actuator class. Co-filing is also rare in this dataset, so joint-development filing strategies remain largely untested here.
WO2022232953A1 describes a double-acting pneumatic cylinder split into two chamber pairs, where one pair performs normal constant-pressure displacement work and the second recovers the thermodynamic energy of pressurised air by expansion instead of venting it. That specific two-chamber-pair, energy-recovery architecture is what the claims are built around, so it most directly constrains designs that reduce air consumption through a similar staged-expansion approach. Designs that address air consumption through other routes, such as improved seal friction or valve timing, sit outside its core claim scope and warrant separate analysis before assuming a blocking position.
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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.