Vibrating Screen Patents: Who Leads, Where the Gaps Are 2026
Vibrating Screen Patents: Deck Design, Exciter Bearings and Where Filings Concentrate
Concentrated but not locked up. the top 5 assignees hold 48.3% of all 58 records in scope, and the top 10 hold 65.5% — dense at the front, then a long tail of single-filing entrants. Filings rose from a single record in 2017 to a peak of 6 in 2022. The most recent complete comparison — 2021 against 2024 — shows 0% net change, so the field looks steady rather than accelerating or declining once the publication lag is accounted for.
- 1F L SMIDTH & CO AS8
- 2RES & DEV OF NATURAL RESOURCES7
- 3SUPERIOR INDUSTRIES LLC6
- 4LUDOWICI AUSTRALIA PTY LTD4
- 5SCHENCK PROCESS AUSTRALIA (PTY) LTD3
See the full vibrating screen 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 vibrating screen patents
Who holds the most vibrating screen patents?
Within this 58-record dataset, one assignee leads with 8 records, well ahead of the rest of the ranked field. The top 5 assignees together account for 48.3% of all records and the top 10 for 65.5%, so leadership is concentrated at the front but the ranking still includes 32 companies overall, many with only one or two filings. That long tail is where smaller equipment makers and regional mining operators tend to sit, rather than in the top ranks.
Is vibrating screen patent filing activity growing or slowing down?
The most reliable comparison, from 2021 to 2024, shows 0% net change — filings held flat rather than growing or shrinking. 2022 was the single peak year at 6 records. Filings recorded for 2025 and 2026 look lower, but that is expected because publication typically lags actual filing by around 18 months, so those years are still filling in and should not be read as a real decline.
What does US3468418A actually cover, and does it still matter?
US3468418A, titled Natural frequency vibrating screen and originally assigned to Allis-Chalmers Corporation, describes a screen built to operate at or near its natural resonant frequency. It has drawn 39 citations within this corpus, making it one of the most-referenced early records in the field. Its age means the core resonance concept is long out of patent term, but it remains a useful prior-art anchor for anything touching exciter tuning or stroke amplitude design.
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 Vibrating Screen 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.