Compressed Air Foam System Patents: Leaders & Trends 2026
Compressed air foam system patents: who leads and where filing activity is heading
62.2% of all 90 records in scope belong to just five assignees, so the field's claim space is concentrated rather than fragmented. Filings rose to a peak of 5 in 2020, then eased; the 2021-to-2024 window (a complete-year comparison) shows a 50% decline, from 4 filings to 2. Years from 2025 onward are still filling in and should not be read as confirming that decline.
- 1TOFT MORTEN14
- 2INTELAGARD INC14
- 3IVECO MAGIRUS AG10
- 4HALE PRODUCTS INC10
- 5FAAC8
See the full compressed air foam systems 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
Frequently asked questions
How concentrated is the compressed air foam system patent field?
It is fairly concentrated. Five assignees hold 62.2% of the 90 records in scope, and extending to ten assignees brings that to 85.6%. Beyond the ranked leaders, the remaining filers each hold only a handful of records, so most of the claim density sits with a small group of companies rather than being spread evenly across the field. Anyone filing a new application should expect to design around that top tier’s existing claims first.
Is compressed air foam system patent activity growing or shrinking?
The clearest complete-year comparison available runs from 2021 to 2024, and it shows a 50% drop, from 4 filings to 2. The dataset’s peak year so far is 2020, with 5 filings. Because publication lags filing by roughly 18 months, the years from 2025 onward are still filling in and should not yet be treated as continuing or reversing that decline.
Which technology areas within CAFS have the most patent coverage?
Fire-fighting (IPC class A62C) dominates, covering 68.9% of the 90 records in scope. Mixing and stirring (B01F) and planting and sowing equipment (A01C) each cover 14.4%, with imaging, educational aids, spraying and chemical-protection classes trailing further behind. Because a single record can carry several IPC classes, these shares add up to more than 100%, and they measure claim density rather than technical maturity.
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 Compressed Air Foam Systems 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.