Centrifugal Fan Aerodynamic Optimization Patents: Leaders & Trends 2026
Centrifugal Fan Aerodynamic Optimization Patents: Who Holds the Claims
Concentration is moderate, not extreme. the top 5 assignees hold 50.0% of all 38 records in scope, and the top 10 hold 76.3% — a leader plus a real second tier, not a single dominant filer. Filings peaked at 3 in 2018 and have since run lower, with 2021 at 3 falling to 1 by 2024 (-67%). Treat 2025 and 2026 as undercounted: publication typically lags filing by around 18 months, so the most recent years always look thinner than they will eventually be.
- 1ACOUSTIFLO5
- 2MIDEA GROUP CO LTD4
- 3CARRIER CORP4
- 4XI AN JIAOTONG UNIV3
- 5GREE ELECTRIC APPLIANCE INC OF ZHUHAI3
See the full centrifugal fan aerodynamic optimization 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 on centrifugal fan aerodynamic optimization?
The ranking covers 22 companies across 38 records in scope, with the leading assignee holding 5 records. The top 5 assignees combined hold 50.0% of all records, and the top 10 hold 76.3%, which means there is a genuine second tier of filers rather than one company controlling the field. The mix includes HVAC and appliance manufacturers alongside university research labs, so commercial and academic filing pressure are both present.
Is filing activity in this field growing or shrinking?
Filings peaked at 3 in 2018 and have since declined, with the 2021 count of 3 falling to 1 by 2024 — a -67% drop over that span. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so the most recent years will fill in somewhat but are unlikely to reverse the broader cooling trend visible since 2018.
Which jurisdictions matter most for freedom-to-operate checks?
China and the United States dominate receiving-office activity, with 19 and 12 filings respectively out of the tracked total. Europe (EPO), the United Kingdom and Japan each show only 2 filings, and the WIPO PCT route shows 1. Anyone manufacturing or selling centrifugal fans with optimized aerodynamic features should prioritise clearance in China and the US first, since that is where the bulk of enforceable rights sit.
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 Centrifugal Fan Aerodynamic Optimization 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.