Disc-Stack Centrifugation Shear Control Patents: Who Holds the Claim Space
Concentrated at the top. The five most active filers together hold 96 records — 32.9% of the 292 in scope — while the ranked leaders' list runs 100 deep with a long single-filing tail. Filings ran near zero through the late 2010s, rose to a peak of 10 records in 2022, and the 2021-to-2024 span shows a 50% increase (2 to 3 records) on the complete-year figures. The 2025 and 2026 counts will continue to rise as later publications catch up with filing dates.
- 1MANN HUMMEL GMBH48
- 2ALFA LAVAL CORP AB18
- 3GLACIER METAL12
- 4ADVANCED ENERGY10
- 5FEDERAL MOGUL ENG8
See the full disc-stack centrifugation shear control 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 on this landscape
Who holds the most patents in disc-stack centrifugation shear control?
One assignee leads with 48 of the 292 records in scope, well ahead of the fifth-place holder at 8 and the tenth-place holder at 7. The top five filers combined hold 96 records, or 32.9% of the field, so the earliest and broadest claims sit with a small group rather than being evenly spread. Beyond the top ten, the ranking runs to 100 companies with a long tail of single- or low-filing entrants.
Is filing activity in this space growing or slowing down?
On the complete-year data, filings rose from 2 in 2021 to 3 in 2024, a 50% increase, with a peak of 10 records in 2022. The apparent decline in 2025 and 2026 is not a real slowdown — publication typically lags filing by around 18 months, so the most recent one to two years of any patent trend always look artificially low. Treat 2024 as the most recent reliable data point.
How does disc-stack centrifuge patent claim territory overlap with other industries?
Centrifuge apparatus claims (B04B) cover 91.1% of the 292 records, but a meaningful share also touches engine lubrication (F01M, 18.5%), general separation processes (B01D, 11.0%), and bioreactor or cell-culture apparatus (C12M and C12N, each around 7%). This means shear-control innovations developed for one industry, such as automotive filtration, are being claimed in ways that also cover biological processing equipment, and vice versa.
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 Disc-Stack Centrifugation Shear Control 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.