Aerodynamics & Flight Mechanics Patents: Who Leads, Where the Gaps Are 2026
- Concentrated at the top. The leading assignee holds 23 records while the top 5 combined account for 35.0% of all 200 records in scope — well ahead of a long tail of single- and few-filing entrants among the 60 ranked companies.
- Filing has cooled from its 2018 peak. Activity peaked at 17 records in 2018 and filings fell 20% from 2021 (10) to 2024 (8), the last year with a complete publication window.
- Aeroplane and helicopter claims dominate the class mix. B64C covers 47.0% of all 200 records and B64D covers 33.5%, meaning close to half the field's claim space sits inside airframe and equipment subclasses rather than software or ground systems.
Filing growth compares 2021 (10 records) with 2024 (8) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 200 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape tracks 200 published records at the intersection of aircraft aerodynamics and flight mechanics — filings that combine language on flight condition, aerodynamic load, vibration mode or fatigue crack with core aerospace aerodynamics claims. The scope spans 2015 through the 2026 data cut-off, with the most recent one to two years understated because publication typically lags filing by roughly 18 months.
Records are drawn from receiving offices led by the United States (94), Europe via the EPO (36) and the WIPO PCT route (17), with Germany, Austria and the United Kingdom each contributing a smaller but active share. The mix of aeroplane structures, aircraft equipment and digital flight-data processing subclasses points to a field where mechanical airframe claims and computational flight-characteristic methods are filed side by side rather than in separate silos.
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Trend and technology composition
Two views of the same 200 records: how filing activity has moved year over year, and which IPC subclasses carry the claim density.
Filing trend, 2017–2026
Filings ran from 16 records in 2017 to a peak of 17 in 2018, then eased to 10 by 2021 and 8 by 2024 — a 20% decline over that three-year span. 2025 and 2026 figures are still filling in under the usual publication lag and should not be read as a continued drop.
IPC subclass composition
B64C (aeroplanes and helicopters) and B64D (aircraft equipment) lead at 47.0% and 33.5% of all 200 records respectively. G06F digital data processing (15.0%), G08G traffic control (13.5%) and G01C navigation (11.0%) show a meaningful secondary cluster around flight computation and airspace management, while G09B educational aids (9.5%), B64F ground installations (9.0%) and G01P velocity/acceleration sensing (6.0%) round out the mix. Because records often carry multiple classes, these shares sum to well over 100% of the record total.
Shares are the percentage of the 200 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Aerodynamics & Flight Mechanics Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about aerodynamics & flight mechanics patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative filing and most-cited records
Correcting flight-characteristic calculations for vertical wind and drag coefficient
Filed by BERDOULAT, LAURENT, the application discloses a method for correcting airplane flight-characteristic calculations using in-flight measurements taken at defined flight conditions — including measured pitch angle and a model-calculated angle of attack derived from a lift equation and aerodynamic model — to refine drag coefficient estimates against vertical wind effects.Published 2017-12-14 as US20170356925A1.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20160236790A1 | System and methods for implementing regional air transit network using hybrid-electric aircraft | 395 |
| 2 | US20200290742A1 | Hybrid-electric aircraft, and methods, apparatus and systems for facilitating same | 250 |
| 3 | US4924401A | Aircraft ground collision avoidance and autorecovery systems device | 155 |
| 4 | US10118696B1 | Steerable rotating projectile | 120 |
| 5 | US6286783B1 | Aircraft with a fuselage substantially designed as an aerodynamic lifting body | 103 |
| 6 | US20130261853A1 | Vehicle management system using finite state machines | 89 |
| 7 | US20180134400A1 | System and methods for implementing regional air transit network using hybrid-electric aircraft | 87 |
| 8 | US20160238481A1 | Aerodynamic Modeling Using Flight Data | 80 |
| 9 | US9561860B2 | System and methods for implementing regional air transit network using hybrid-electric aircraft | 69 |
| 10 | US6042059A | System and method of vortex wake control using vortex leveraging | 60 |
Citation counts reflect influence within this searched corpus and skew toward older filings; they are not a measure of current commercial importance.
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Three patterns stand out once family counts, class shares and citation data are read together.
A narrow leadership tier over a long tail
The leading assignee holds 23 records on its own, and the top 5 combined reach 35.0% of all 200 records in scope. Below that tier the ranking of 60 companies thins out quickly, with tenth place holding just 7 records — a classic long-tail structure where most entrants file once or twice.
Activity has eased from its 2018 peak
Filings peaked at 17 records in 2018 and fell from 10 in 2021 to 8 in 2024, a 20% decline over that span. Because publication lags filing by roughly 18 months, 2025 and 2026 counts are still incomplete and should not be read as confirming a continued slide.
Airframe claims dominate, computation is secondary
Nearly half of all records touch B64C aeroplane and helicopter structures, with B64D aircraft equipment close behind at 33.5%. Digital processing (G06F, 15.0%) and navigation (G01C, 11.0%) form a real but smaller secondary cluster, suggesting flight-mechanics computation is filed as a complement to airframe claims rather than as its own dominant category.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to aerodynamics & flight mechanics patent landscape, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Aspen Avionics Inc | CENT ITAL RICERCHE AEROSPAZIALI S C P A | 10 |
| LONESTAR INVENTIONS LP | AKCASU OSMAN ERSED | 2 |
| Volvo Aero Corporation | RING DAN | 1 |
| Volvo Aero Corporation | LUNDBLADH ANDERS | 1 |
| Volvo Aero Corporation | JOHNSSON THOMAS | 1 |
| Volvo Aero Corporation | HANNIUS OLOF | 1 |
Only 6 co-assignee pairs appear across the dataset, and the strongest pair recurs just 10 times — most records here are filed by a single assignee rather than through joint development arrangements.
Who holds the claim space
The ranked list covers 60 companies; concentration sits at the top while momentum has slowed across the most active recent filers.
One assignee well ahead of the field
The top-ranked assignee holds 23 records, noticeably more than the fifth-place holder's 10 and tenth-place holder's 7. That gap suggests a genuinely dominant filer rather than a cluster of near-equal competitors at the very top.
Just over half the field sits with ten firms
The top 10 combined account for 109 of the 200 records in scope, or 54.5%. The remaining 50 ranked companies split the other 45.5%, reinforcing a field with a defined leadership tier and a long, thin tail below it.
Recent-year activity has gone quiet at the top
Several of the most historically active assignees, including the current leader, show zero filings in the latest year on record. That flat momentum should be weighed against the 18-month publication lag before reading it as firms exiting the space.
| Assignee | Recent year | YoY |
|---|---|---|
| ZUNUM AERO INC | 0 | -100% |
| Sikorsky Aircraft Corp | 0 | — |
| Aspen Avionics Inc | 0 | — |
| Brunel University | 0 | — |
| CENT ITAL RICERCHE AEROSPAZIALI S C P A | 0 | — |
| Politecnico di Torino | 0 | — |
| Volvo Aero Corporation | 0 | — |
| Leonardo S.p.A. | 0 | — |
Where to take this analysis
The dataset points to a mature core (airframe structures, aircraft equipment) surrounded by thinner secondary branches still open for differentiated claims.
Map claim boundaries around the leader's 23 records
Before filing in the B64C/B64D core, check how the top assignee's claims are actually scoped — dense filing density does not mean every sub-claim is occupied.
Explore assignee claims in EurekaTrack the under-claimed sub-areas
Sensing, fatigue-crack detection and training-aid branches show lower record counts than the airframe core, which may leave room for narrower, well-drafted claims.
Run a white space search in EurekaRe-check 2025-2026 filings as they publish
The apparent slowdown after 2021 rests on 2024 as the last complete year; incoming publications may revise that read within the next reporting cycle.
Set a filing alert in EurekaCommon questions about this landscape
The ranking covers 60 companies, with a clear leader holding 23 of the 200 records in scope. The top 5 combined account for 35.0% of all records, and the top 10 combined reach 54.5%, so a defined leadership tier exists above a long tail of firms with only one or two filings each. Family counts, rather than raw document counts, give the fairer comparison since they neutralise multi-jurisdiction and continuation filing patterns.
Filings peaked at 17 records in 2018 and declined from 10 in 2021 to 8 in 2024, a 20% drop over that three-year window. However, publication lags filing by roughly 18 months, so 2025 and 2026 figures in this dataset are still incomplete and should not yet be treated as confirming a continued decline. The safest complete-year comparison currently available ends at 2024.
B64C, covering aeroplanes and helicopters, appears in 47.0% of the 200 records in scope, and B64D, aircraft equipment, appears in 33.5%. Digital data processing (G06F) and traffic control systems (G08G) form a smaller secondary cluster at 15.0% and 13.5% respectively. Because a single record can carry multiple IPC classes, these percentages add up to more than 100% and should not be summed as a total.
Sub-areas like fatigue-crack detection in airframe structures, velocity and acceleration sensing for flight control, and educational or simulation-based training aids show comparatively lower record counts than the dominant B64C and B64D categories. That thinner density does not guarantee freedom to operate, but it does suggest less crowded claim space for narrowly drafted applications. Any filing decision there should still include a freedom-to-operate search against the specific claims held by the top-ranked assignees.
US20170356925A1 discloses a method for correcting an airplane's calculated flight characteristics, including drag coefficient, using in-flight pitch-angle measurements and an aerodynamic angle-of-attack model, filed by an individual inventor, Berdoulat, Laurent. It sits within the flight-mechanics computation cluster rather than the larger airframe-structure core, and its claims are scoped specifically around vertical-wind correction of drag estimates. It is useful as a representative example of how flight-characteristic calculation methods are claimed distinct from the physical airframe patents that dominate the dataset.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.