Reciprocating Compressor Patents: Who Leads, Where the Gaps Are 2026
- 22 families total. a small, specialised corpus where the most-cited filings carry outsized weight over where the technical boundaries actually sit.
- Filings peaked in 2022 at 12, then declined — a burst of activity rather than a field still accelerating, even allowing for publication lag in the newest years.
- F04B and F04C cover 16 of 22 records, while refrigeration (F25B) and monitoring (G07C) adjacencies remain almost untouched.
A small, specialised corpus centred on two applications
Reciprocating compressor modularity and standardization patents cluster around two distinct commercial applications rather than one unified design philosophy: modular skid-mounted compression for gas wellsites, and modular compressor assemblies integrated into vehicle air-supply systems. The dataset’s most-cited filing, a wellsite CNG system application from around 2015, still anchors the field’s foundational thinking even as more recent filings shift toward vehicle integration.
With only 22 families across more than a decade of coverage, this is not a crowded category. Filing activity rose to a peak in 2022 and has since pulled back, and the classification spread shows positive-displacement and rotary-piston pump subclasses carrying most of the weight, leaving refrigeration and monitoring adjacencies largely unclaimed.
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Filing trends and technology composition
Twenty-two patent families make this a small, specialised corpus rather than a crowded field — every filing carries more relative weight than in a high-volume category.
Filings peaked in 2022, then went quiet
Filings ran flat near zero from 2017, rose to a peak of 12 families in 2022, and have since declined. With publication lagging filing by roughly 18 months, the last one or two years understate true activity, but the shape does not look like a technology still accelerating.
Positive-displacement pumps dominate the classification
F04B (positive-displacement pumps) accounts for the largest share at 10 records, with F04C (rotary-piston pumps) and F17C (pressure vessels and gas storage) each at 6. G07C and F25B trail far behind, marking them as thin, under-explored adjacencies rather than core claim territory.
Shares are the percentage of the 22 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Reciprocating Compressor Modularity and Standardization with Eureka
This page is one run against one query. Ask Eureka your own question about reciprocating compressor modularity and standardization and every answer comes back with the patent numbers behind it.
Try EurekaA representative filing: modular compressor assembly for vehicles
Modular compressor assembly, air supply system, vehicle
Modular compressor assembly (100), in particular for a vehicle (1000), comprising at least one compressor module (20) for providing pressurized air, an air processing module (40) with an integrated air dryer (42), an electric motor module (140) in its own housing, and an inverter module (180) supplying electric energy to the motor. All four modules are mounted to each other to form a single integral unit.Filed by ZF CV Systems Global; the claim scope centers on the four-module structural combination rather than any single component.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20150240996A1 | Modular Compressed Natural Gas System for Use at a Wellsite | 44 |
| 2 | US9404623B2 | Modular compressed natural gas system for use at a wellsite | 12 |
| 3 | WO2015130723A1 | Modular compressed natural gas system for use at wellsite | 2 |
| 4 | US20250243858A1 | Compressor assembly, air supply system, vehicle | 1 |
| 5 | WO2022255714A1 | Device for cooling a fluid to be compressed in a compressor and compressor with the device | 1 |
Ranked by citation count within the searched corpus; older filings tend to lead simply by having had longer to accumulate citations.
Publication numbers are shown where the record carries one (5 of 5 rows); clicking a row searches Eureka by that number.
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Browse MCP servers →What the citation and filing patterns indicate
Citation depth and filing volume tell different stories here: the oldest filings are the most influential, while the newest activity is clustered around vehicle integration rather than the original wellsite use case.
One early filing anchors the whole field
US20150240996A1, describing a modular compressed natural gas system for wellsite use, holds 44 citations — far ahead of any other record in this corpus, including its own granted counterpart at 12. That gap means most of the field's foundational thinking traces to a single application filed around 2015.
A filing burst, then a pullback
Activity sat near zero through 2017, climbed to a peak of 12 families in 2022, and has fallen since. Publication lag means the most recent one to two years are undercounted, but even generously adjusted, the shape does not resemble sustained growth.
Positive-displacement pumps hold the core claim territory
F04B records make up close to half the corpus, with F04C rotary-piston and F17C pressure-vessel classifications trailing at 6 each. G07C and F25B each carry only one or two records, marking them as adjacent rather than core.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to reciprocating compressor modularity and standardization, with the prior art for and against each one.
A fragmented field with no dominant filer
No single organisation shows sustained recent-year filing momentum in this dataset. Ownership is split across automotive supply, industrial equipment, and individual filers, with the most influential prior art tracing to an earlier, unrelated wellsite application.
ZF CV Systems
Filed under both its Europe and Global entity names, ZF CV Systems holds the representative vehicle-integration filing WO2023025507A1, describing a four-module integral compressor assembly. Recent-year filing data shows no new activity from either entity in the latest period covered.
General Electric
General Electric appears among the assignees in this corpus but, like the other tracked filers, shows no filings in the most recent year captured by this dataset.
Hanon Systems
Hanon Systems is present in the assignee set for this search string, reflecting overlap between modular compressor design and vehicle thermal-management systems, though without recent filing activity in this dataset.
| Assignee | Recent year | YoY |
|---|---|---|
| ZF Commercial Vehicle Systems Europe GmbH | 0 | — |
| General Electric Company | 0 | — |
| Hanon Systems | 0 | — |
| ITURRIAGA NOTARIO LUIS | 0 | — |
| ZF CV Systems Global GmbH | 0 | — |
| OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOSTYU TEGAS | 0 | — |
Where to take this analysis
The filing data points to a field defined by two applications and several thin adjacencies rather than one dominant design. The next step is testing specific claim language against the full family record.
Trace the wellsite-to-vehicle shift
Follow how the original modular CNG wellsite filings relate — or don't — to the newer vehicle-integration filings, to see whether they represent one lineage or two independent inventions converging on 'modular' as a design word.
Trace assignee lineage in EurekaTest a claim in the thin adjacencies
Refrigeration and monitoring-integration adjacencies show only one to two records each. Drafting a claim there and running it against the full-text corpus is the fastest way to confirm whether that white space is real or an artifact of the search string.
Run a claim check in EurekaWatch for renewed filing after the 2022 peak
Because publication lags filing by about 18 months, the apparent post-2022 decline may partially reverse as 2025 and 2026 applications continue to publish. Re-checking this trend in six to twelve months will clarify whether the pullback is real.
Set a monitoring alert in EurekaCommon questions about this landscape
This dataset contains 22 patent families published between 2015 and mid-2026. That is a small corpus by patent-landscape standards, which means individual filings — especially the most-cited ones — carry outsized influence on where the technical boundaries sit. Because it is a mechanical-engineering niche rather than a broad category, gaps in coverage are as informative as the filings themselves.
Filing activity in this dataset is spread across a small number of organisations including ZF CV Systems (filed under both its Europe and Global entity names), General Electric, Hanon Systems, and individual and Russian-registered filers, with no single assignee showing sustained year-over-year momentum in the most recent period. The most-cited underlying technology, the modular CNG wellsite system, traces to earlier US filings rather than to the more recent vehicle-integration filers. Readers should treat this as a fragmented ownership picture rather than one dominated by a clear leader.
WO2023025507A1, filed by ZF CV Systems Global, describes a modular compressor assembly for vehicles that mounts a compressor module, an air processing module with an integrated air dryer, an electric motor module, and an inverter module together as one integral unit. The blocking scope centers on that four-part structural combination rather than any single component. Designs that physically separate the inverter or motor from the compressor housing may sit outside the claim as described.
The trend data shows a rise from near zero in 2017 to a peak of 12 families in 2022, followed by a falloff. Some of that apparent decline is a publication-lag artifact — patent applications typically publish around 18 months after filing, so 2025 and 2026 figures are understated in any dataset pulled today. Even accounting for that lag, the shape suggests a burst of filing activity around 2022 rather than a steadily accelerating field.
The IPC composition shows F04B and F04C carrying the bulk of filings, while F25B (refrigeration and heat pumps) has only one record and G07C (monitoring-type devices) has just two. That thinness points to under-claimed combinations: standardized compressor modules applied directly to refrigerant-circuit heat pump integration, or modular frames paired with integrated usage-cycle monitoring, both look open relative to the wellsite and vehicle-integration filings that dominate the rest of the corpus.
With 22 families spread across assignees with no single filer showing recent-year momentum above zero, this looks fragmented rather than concentrated at the top. The most influential prior art by citation count — the modular CNG wellsite filings — predates the more recent vehicle-integration wave, suggesting the field is still being re-approached from different application angles rather than consolidating around one player's design.
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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.