Vacuum Conveying Patents: Who Leads, Where the Gaps Are 2026
Vacuum Conveying and Containment Transfer Patents
79.2% concentration. The top 5 assignees hold 282 of the 356 records in scope — filing here is dominated by a small group, not spread across a broad field. Annual filings rose to a peak of 16 records in 2019, then eased. The 2021-to-2024 span shows a -75% move (8 records down to 2), the clearest complete-year comparison available; 2025 and 2026 are still filling in as later publications appear.
- 1MARICAP OY133
- 2CHARGEPOINT TECH54
- 3PROCTER & GAMBLE CO52
- 4QLAR EUROPE GMBH23
- 5EZI DOCK SYST20
See the full vacuum conveying and containment transfer 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 are the leading patent holders in vacuum conveying and containment transfer?
Filing in this field is highly concentrated: the top five assignees together hold 282 of the 356 records in scope, or 79.2%, and the single leading assignee alone accounts for 133 records. The gap after the leader is steep — fifth place holds 20 records and tenth place just 9 — so the top 10 combined already cover 96.9% of all records. Anyone assessing competitive position or freedom-to-operate should start with the leading portfolio rather than treating this as an evenly distributed field.
Is vacuum conveying patent activity growing or shrinking?
Filings peaked at 16 records in 2019 and had fallen to 2 by 2024, a -75% change from the 8 records filed in 2021 to 2024’s total. That is the clearest complete-year comparison available in this dataset. Figures for 2025 and 2026 look lower still, but publication typically lags actual filing by around 18 months, so those most recent years understate real activity rather than confirming a continued decline.
What does a split butterfly valve patent typically claim, and why does it matter for occupational exposure?
Split butterfly valve claims in this dataset sit alongside functional language around occupational exposure limits, contained transfer and cleanability of contact surfaces, reflecting their use in transferring powders without exposing operators or the surrounding environment to the material. F16K (valves and taps) covers 16.9% of the 356 records, making it the second-largest IPC class after B65G conveying hardware. Because these valves interface directly with both the conveying line and cleaning-in-place requirements, claims here often reach into A47L cleaning apparatus classification as well.
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 Vacuum Conveying and Containment Transfer 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.