Diaphragm and Peristaltic Pumps Patents: Leader, Long Tail 2026
- One assignee pair dominates recent filing. the strongest co-assignee link ties two entities together at 12 shared records, against a fifth-place company holding just 3.
- Filing peaked in 2021 at 12 records, then stalled. the 2022 midpoint dropped to 0, and the trend has not recovered through the most recent data cut, though publication lag understates the last 18 months.
- Pump claims increasingly sit inside biologics manufacturing, not process chemicals. A61K and B01F classes each appear on 41.4% of the 29 records in scope, alongside pump-specific F04B on all of them.
What this landscape covers
This dataset tracks patent families combining diaphragm pump, peristaltic pump and metering pump terminology with claims touching dosing accuracy, diaphragm fatigue life, tube life, leak-free handling of hazardous fluid, or pulsation dampening, filtered to positive-displacement pump IPC classes (F04B43, F04B13, F04B49). It spans filings from 2015 through the mid-2026 data cut, with 29 published records in scope.
The technology sits at an intersection: mechanical pump engineering (fatigue life, seal integrity, pulsation control) increasingly overlapping with pharmaceutical and lab-automation applications, where dosing linearity and leak-free handling of hazardous or biologic fluids drive the claim language.
Filing trend and technology composition
Two views of the same 29-record dataset: how filing activity has moved year over year, and which IPC subclasses carry the claims.
Filing activity, 2015–2026
Filings rose to a peak of 12 records in 2021, then fell back to 0 at the 2022 midpoint and have not recovered through the most recent year tracked (2026 = 0, though this figure is understated by publication lag). The pattern reads as a single filing wave tied to one active period rather than steady annual output.
IPC subclass composition
Every record in scope carries an F04B positive-displacement pump classification by design of the search. Beyond that base, A61K (medicinal preparations) and B01F (mixing and stirring) each cover 41.4% of the 29 records, followed by A61M, B01L, B81B and G01N each at 17.2%, and C12M bioreactor classifications at 13.8%. Because records can carry multiple IPC classes, these shares sum to well over 100% and should not be read as a single pie.
Shares are the percentage of the 29 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Diaphragm and Peristaltic Pumps with Eureka
This page is one run against one query. Ask Eureka your own question about diaphragm and peristaltic pumps and every answer comes back with the patent numbers behind it.
Try EurekaThe prior art shaping this field
Systems and methods for producing pharmaceutical compositions using peristaltic pumps and dampeners
Provided herein are methods and systems for use with peristaltic pumps. More particularly, provided herein are peristaltic pump systems that include a dampener for reducing the pulsations of the flowrate from the peristaltic pump system to produce, mix, transfer and/or manufacture pharmaceutical compositions and formulations, including pharmaceutical compositions and formulations comprising lipids and RNA.Filed by Genentech, this application (WO2022055867A2) ties peristaltic pump dampening hardware directly to lipid-and-RNA pharmaceutical manufacturing, placing it at the centre of the A61K/F04B overlap this dataset shows.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20080077068A1 | Diaphragm pump and related methods | 272 |
| 2 | US5165869A | Diaphragm pump | 130 |
| 3 | US8197231B2 | Diaphragm pump and related methods | 63 |
| 4 | US20180163713A1 | Systems, apparatuses, and methods for cell sorting and flow cytometry | 14 |
| 5 | WO2016210077A1 | Systems, apparatuses, and methods for cell sorting and flow cytometry | 14 |
| 6 | US8932032B2 | Diaphragm pump and pumping systems | 12 |
| 7 | KR1020060037886A | Device for pulsation dampening of metering pump using diaphragm | 9 |
| 8 | KR100677924B1 | Device for pulsation dampening of metering pump using diaphragm | 6 |
| 9 | EP3314123A1 | Systems, apparatuses, and methods for cell sorting and flow cytometry | 5 |
| 10 | CN203670162U | 延长隔膜疲劳寿命的计量泵用双层隔膜装置 | 1 |
Citation counts favour older filings simply because they have had longer to accumulate citations inside this corpus; treat them as a signal of influence on later filers, not of current commercial importance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
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Four read-outs from the same 29-record dataset, each pointing at a different practical question: where claim density already exists, where it does not, and where citation weight sits.
One filing wave, not sustained output
Activity rose to 12 records in 2021 and dropped to 0 by the 2022 midpoint, with no recovery through the latest tracked year. That shape looks like a single research programme reaching the patent office rather than an industry ramping filing year on year.
Pump hardware is following biologics manufacturing
Medicinal-preparation and mixing/stirring classifications each sit on over 40% of records, well ahead of the more traditional lab and MEMS classes near 17%. Diaphragm and peristaltic pump claims in this set are increasingly written for drug production lines, not generic fluid transfer.
Foundational diaphragm pump patents still anchor the field
The two most-cited records in this set are decades-old diaphragm pump patents, each cited well ahead of any recent filing. New entrants drafting around fatigue-life or leak-free-handling claims are still working in the shadow of that early art.
A steep drop after the top of the ranking
The leading assignee sits at 12 records while the fifth-ranked company in this 8-company ranking holds only 3. The gap suggests one dominant filer and a long tail of smaller or single-programme entrants rather than several evenly matched competitors.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to diaphragm and peristaltic pumps, with the prior art for and against each one.
Who is filing, and where the open ground sits
The ranked leaders in this dataset cluster around one dominant co-filing relationship, with the rest of the 8-company ranking trailing well behind. Recent-year momentum has gone quiet across the board.
A single co-assignee relationship drives the top of the field
The strongest co-assignee pair in this dataset — a European biotech entity filing jointly with a biotechnology parent — accounts for 12 shared records, matching the leader's total. That pairing, not a spread of independent filers, explains most of the concentration at the top.
Everyone else files in small numbers
Past the leading pair, the remaining ranked assignees — including a cell-sorting specialist, a Korean public research institute, and an industrial pump manufacturer — each hold single-digit record counts, down to 3 at fifth place. This is a field with one heavy filer and several occasional ones.
No assignee shows recent-year filing activity
Every assignee tracked for recent-year momentum, from the leading pair down to the smaller filers, shows 0 records in the latest year. Combined with the 2021 peak and 2022 drop-off, this points to a filing wave that has already crested rather than an accelerating race.
| Assignee | Recent year | YoY |
|---|---|---|
| BioNTech SE | 0 | — |
| Genentech, Inc. | 0 | — |
| NanoCellect Biomedical, Inc. | 0 | — |
| PURITY SOLUTIONS LLC | 0 | — |
| Korea Institute of Industrial Technology | 0 | — |
| Shengruilan Industrial Equipment (Suzhou) Co., Ltd. | 0 | — |
| Warren Rupp, Inc. | 0 | — |
Where to take this analysis
The dataset points to a field with one dominant filing relationship, a stalled filing wave, and thin claim density in several adjacent branches. The next steps depend on whether you are drafting, clearing, or monitoring.
Check freedom to operate against the two oldest diaphragm pump patents
Both of the highest-cited records in this set predate the recent filing wave and still carry substantial citation weight. Any new diaphragm pump claim should be checked against them before drafting.
Run a freedom-to-operate search in EurekaWatch the leading co-assignee pair for renewed activity
The pairing behind the 2021 peak has shown zero recent-year filings. A resumption there would be the clearest early signal of the next filing wave in this space.
Set up assignee monitoring in EurekaDraft around the under-claimed branches, not the crowded core
Tube-life extension, dampener integration for biologics lines, and microfluidic pump-on-chip claims show thinner density than the core diaphragm/peristaltic mechanics. That is where a first claim has more room.
Explore white space in EurekaCommon questions on diaphragm and peristaltic pump patents
In this dataset, one assignee pairing leads the ranked field with 12 records, built on the strongest co-assignee relationship in the data — a European biotech entity filing jointly with its biotechnology parent. The fifth-ranked company in the 8-company ranking holds only 3 records, so the field has a clear leader and a thin tail rather than several evenly matched filers. This ranking reflects the specific search scope used here (diaphragm, peristaltic and metering pump claims tied to dosing, fatigue life, and pulsation dampening), not the pump industry as a whole.
Filing peaked at 12 records in 2021 and dropped to 0 by the 2022 midpoint, with no recovery through the latest year tracked in this dataset. That pattern looks like a single concentrated filing programme rather than sustained year-on-year growth. Because publication typically lags filing by around 18 months, the most recent one to two years in any dataset understate true activity, so a renewed uptick may not yet be visible in the public record.
Medicinal preparations (A61K) and mixing-and-stirring apparatus (B01F) each appear on 41.4% of the 29 records in scope, well ahead of body-fluid devices, lab apparatus, MEMS and material-testing classes, each near 17%. That mix indicates pump claims in this space are increasingly drafted for pharmaceutical and biologics manufacturing rather than generic industrial fluid transfer. A record can carry more than one classification, so these figures overlap rather than sum to a whole.
WO2022055867A2, filed by Genentech, claims peristaltic pump systems built with a dampener to reduce flowrate pulsations during production, mixing, transfer or manufacture of pharmaceutical compositions, specifically including formulations comprising lipids and RNA. It sits directly at the overlap between pump mechanics and biologics manufacturing that shows up in the A61K/F04B classification pattern across this dataset. Anyone building a peristaltic dosing line for lipid-nanoparticle or RNA formulation work should review its claim scope before finalising a dampener design.
Based on classification density in this dataset, tube-life extension for peristaltic dosing, diaphragm fatigue-life sensing, dampener integration specifically for RNA and lipid manufacturing lines, and microfluidic pump-on-chip designs (B81B) all show thinner and less concentrated claim coverage than the core pump mechanics. These branches appear in the classification mix but are not where the leading assignee's filings concentrate. That combination, present but under-claimed, is typically where a first, narrowly drafted claim has the best chance of standing on its own.
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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.