Vacuum Ejectors and Generators Patents: Leaders & White Space 2026
Vacuum Ejectors and Generators: Who Holds the Patents and Where Filing Is Still Open
Concentrated but not locked up. the top 5 assignees hold 34.6% of all 153 records in scope, and the top 10 hold 51.0% — leaving nearly half the field to a long tail of single- and few-filing entrants. Published records rose from 6 in 2017 to a peak of 23 in 2023. The 2021-to-2024 span shows filings doubling (+100%), and the drop-off visible in 2025-26 reflects publication lag rather than a real slowdown, since publication typically trails filing by roughly 18 months.
- 1J SCHMALZ GMBH13
- 2PIAB11
- 3FESTO AG & CO KG11
- 4XEREX10
- 5CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED8
See the full vacuum ejectors and generators 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 vacuum ejector and generator patents
Who are the leading patent holders in vacuum ejectors and generators?
The ranked list covers 72 companies, with the leading assignee holding 13 records, fifth place holding 8 and tenth place holding 4. The top 5 assignees together account for 34.6% of all 153 records in scope, and the top 10 account for 51.0%, which means leadership is concentrated but not dominated by a single firm. The remaining half of the dataset is spread across a long tail of companies filing only a handful of times each, so a full competitive picture requires looking beyond the largest filers.
Is patent filing in vacuum ejectors and generators growing or slowing down?
Filing activity has been growing: published records rose from 6 in 2017 to a peak of 23 in 2023, and the 2021-to-2024 window shows a doubling in filings (+100%). The apparent decline in 2025 and 2026 is an artefact of publication lag, since patent publication typically trails the original filing date by around 18 months, not a genuine slowdown in R&D activity. Any conclusion about the most recent one to two years should be treated as provisional until later data cuts fill in.
What patent classes cover vacuum ejector and generator technology?
The dominant IPC subclass is F04F, pumping by other means, which appears in 47.7% of the 153 records in scope — well ahead of B65G, conveying and material handling, at 15.0%, and B25J, manipulators and robots, at 9.8%. Because individual records often carry multiple IPC classes, these percentages overlap rather than sum to 100%, reflecting how ejector and generator technology is claimed both as a standalone pumping device and as a component inside larger handling, robotics and cleaning systems.
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 Ejectors and Generators 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.