Roots & Positive Displacement Blower Patents: Leaders, Trends 2026
Roots and Positive Displacement Blower Patents: Who Holds the Claim Space
260 of 731 records sit with the five most active assignees — 35.6% of the field concentrated at the top, with a long tail below. Filings rose to a peak of 26 records in 2019, then fell; the dataset records a drop from 16 in 2021 to 5 in 2024, a 69% decline over that three-year span. Treat 2025 and 2026 figures as incomplete rather than as evidence the decline is continuing.
- 1EATON CORP100
- 2EATON INTELLIGENT POWER LTD62
- 3VELO3D INC41
- 4HANSEN ENGINE CORP35
- 5VOLVO TRUCK CORP22
See the full roots and positive displacement blowers 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 are the leading patent holders in roots and positive displacement blowers?
The ranking covers 100 assignees, with the leader holding 100 records against 22 at fifth place and 15 at tenth. The top five combined account for 260 of the 731 records in scope, or 35.6% of the field, and the top ten extend that to 353 records, 48.3%. Below the leaders the field fragments quickly into a long tail of companies with only a handful of filings each, so competitive risk is concentrated at the top rather than spread evenly.
Is patent filing activity in this field growing or declining?
Filings peaked at 26 records in 2019 and have declined since, with the dataset showing a drop from 16 records in 2021 to 5 in 2024 — a 69% fall over that three-year span, which is the most recent period the dataset treats as complete. Figures for 2025 and 2026 are still understated because publication typically lags actual filing by around 18 months, so it is premature to call the trend still falling based on those years alone. The pattern is more consistent with a mechanically mature category than a shrinking market.
What patent classifications matter most for roots blower technology?
F04C (rotary-piston pumps) and F02B (internal-combustion engines) are the two dominant classes, each present on close to a third of the 731 records in scope, reflecting the tie between blower mechanics and engine-boost applications. F01C, F02D, B01D, F04D and F02M each appear on a smaller share, roughly 5-10% of records. Because a single record can carry several IPC codes, these shares add up to more than 100% and should not be read as mutually exclusive segments.
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 Roots and Positive Displacement Blowers 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.