Positive Displacement Pump Patents: Top Companies & Filing Trends 2026
Positive displacement pump patents: who holds the claim space and where it is thinning
21.9% concentration at the top. The five leading assignees account for 188 of 858 records in scope, but the leader alone holds 69 — well ahead of a long tail of single- and few-filing entrants. Annual filings rose to a peak of 43 records in 2018, then eased. The 2021-to-2024 span shows a 54% decline, from 35 to 16 records — the clearest complete-year read available, since 2025 and 2026 are still filling in as publications catch up with filing dates.
- 1ALCON INC8.0%
- 2COLORMATRIX HOLDINGS INC4.1%
- 3BAXTER INT INC3.6%
- 4BECKMAN COULTER INC3.3%
- 5TRISTEL PCL2.9%
See the full positive displacement pump technology 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 positive displacement pump patents
Who holds the most patents on positive displacement pump technology?
The dataset’s ranking, covering 100 assignees, shows one company holding 69 of the 858 records in scope, well ahead of the fifth-ranked company at 25. That gap indicates a concentrated leader rather than an evenly split field. Beyond the top ten combined 273 records, or 31.8% of all records, filing spreads thinly across many companies with only a few families each, so most freedom-to-operate risk concentrates around the leading names rather than the long tail.
Is patent filing for positive displacement pumps increasing or slowing down?
Filing peaked at 43 records in 2018 and has declined since, with the clearest complete-year comparison showing a 54% drop from 35 records in 2021 to 16 in 2024. That is a genuine pullback in new filing activity. Figures for 2025 and 2026 are still partial because publication typically lags actual filing by around 18 months, so the most recent years will revise upward over time rather than confirming a continued decline.
How much overlap is there between medical and industrial pump patents?
A substantial one: A61M, the IPC class for body-fluid devices, appears on 16.0% of the 858 records in scope, second only to F04B’s 30.7% for core positive-displacement pump mechanisms. That overlap means infusion pumps, aspiration cassettes and other medical devices are frequently claimed using the same mechanical pump language as industrial equipment, so a freedom-to-operate search in this space should not be limited to purely medical-device classes.
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 Positive Displacement Pump Technology 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.