Axial Compressor Aerodynamics Patents: Who Leads, White Space 2026
Axial compressor aerodynamics patents: mapping who holds the claim space and where it is still open
76.9% concentration. The top five assignees account for 971 of the 1,263 records in scope — a field with one dominant filer and a long tail behind it. Filings ran from 114 in 2017 to a peak of 119 in 2018, then held in a comparable band through the early 2020s. The 2021-to-2024 comparison — 31 down to 29 records, a -6% move — is the cleanest recent read; years after 2024 are still incomplete because of publication lag and should not be read as a decline.
- 1RTX CORP456
- 2UNITED TECH CORP238
- 3GENERAL ELECTRIC CO121
- 4ROLLS ROYCE PLC116
- 5JETOPTERA INC40
See the full axial compressor aerodynamics 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 this landscape
Who holds the most patents in axial compressor aerodynamics?
One assignee leads the ranked field with 456 of the 1,263 records in scope, well ahead of the fifth-ranked filer at 40 records. The top five assignees combined hold 971 records, or 76.9% of all records in scope, which means most new filings in this space are entering a field already dense with prior art from a small number of companies. The ranking itself covers 100 companies total, not just the leaders, so there is a long tail of single- or few-filing entrants below the top ten.
Is patent filing in axial compressor aerodynamics growing or slowing?
Filings ran from 114 in 2017 to a peak of 119 in 2018, then held roughly steady before easing slightly from 31 records in 2021 to 29 in 2024, a -6% change. That is a mild pull-back rather than a sustained decline. Because patent publication typically lags filing by around 18 months, the 2025-2026 figures in any chart will look artificially low and should not be read as evidence the field is shrinking further.
Which patent classes cover axial compressor aerodynamics claims?
The largest classes by record count are F02C, gas-turbine plants, at 35.8% of the 1,263 records, and F23R, combustion chambers, at 35.5%, followed by F01D, turbines and non-positive engines, at 34.5%. Aircraft-specific classes such as B64C and B64D cover a smaller share, around 6% and 5% respectively. Since a single record can carry several IPC codes, these percentages add up to well over 100% and each should be compared only against the 1,263-record total, not against one another as slices of a pie.
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 Axial Compressor Aerodynamics 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.