Nickel Superalloy Microstructure Patent Landscape 2026
The nickel superalloy microstructure patent space is dominated by a tight cluster of aerospace and energy majors led by Safran SA and General Electric, with the United States as the primary filing jurisdiction. Annual volume peaked in 2020 and has since eased, placing the field in a post-peak phase where entrenched leaders maintain strong positions but activity from new academic and industrial entrants is reshaping the edges.
Safran and GE lead a concentrated field anchored in alloy composition and turbine applications
Safran SA holds the top position among the hundred largest filers, followed by General Electric Co in second place. The top five applicants together account for 39% of the combined total of the hundred largest filers, confirming a moderately concentrated competitive structure.
A clear tier gap separates the two leaders from the remainder of the ranking. Cannon Muskegon Corp and France’s national aerospace research office occupy the third and fourth positions, while the mid-tier is populated by universities and specialist suppliers, signalling that academic institutions play a meaningful secondary role alongside industry.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Safran SA | 104 | |
| 2 | General Electric Company | 84 | |
| 3 | Cannon Muskegon Corporation | 42 | |
| 4 | OFFICE NAT DETUDES & DE RECH AEROSPATIALES | 40 | |
| 5 | French National Centre for Scientific Research (CNRS) | 38 | |
| 6 | United Technologies Corporation | 34 | |
| 7 | Safran Aircraft Engines SAS | 25 | |
| 8 | GE Technology GmbH | 24 | |
| 9 | SN DETUDE & DE CONSTR DE MOTEURS DAVIATION (S N E … | 22 | |
| 10 | University of Poitiers | 19 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | University of Nantes | 17 | |
| 12 | Gaona Aero Material Co. Ltd | 16 | |
| 13 | Honeywell International Inc. | 13 | |
| 14 | Aubert & Duval SA | 12 | |
| 15 | GE Infrastructure Technology LLC | 12 | |
| 16 | Honda Motor Co., Ltd. | 11 | |
| 17 | Central South University | 10 | |
| 18 | ENSMA – École Nationale Supérieure de Mécanique et d’Aérotechnique | 10 | |
| 19 | Northwestern Polytechnical University | 8 | |
| 20 | Ansaldo Energia Switzerland AG | 7 |
The leaders’ positions reflect long-term, sustained programmes in single-crystal alloy design and turbine blade microstructure — a strategic depth that is difficult to replicate quickly. Challengers differentiating on powder metallurgy, additive manufacturing, or coating routes have more room to build distinct positions.
Filing counts for 2024–2026 are subject to publication lag and should be treated as provisional; the apparent recent softness in those years does not necessarily reflect true origination activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2020 filing peak followed by easing volume, with alloy composition dominating the technology mix
The two charts together reveal a field that expanded sharply to a 2020 peak and has since moderated, while the technology composition remains heavily weighted toward alloy formulation and heat treatment rather than processing routes.
Annual filing trend
Annual filings climbed to a peak of 51 records in 2020 before retreating. The 2017–2019 baseline averaged roughly 31 records per year. Values for 2024–2026 are incomplete due to publication lag and should not be read as a genuine further decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
C22C (Alloys) is the dominant IPC class by a wide margin, reflecting the central role of compositional design in microstructure control. C22F (non-ferrous metal treatment) and F01D (turbines) rank second and third, confirming that heat-treatment pathways and turbine-component applications are the two main downstream contexts. B33Y (additive manufacturing) and C30B (crystal growth) are present at lower shares, indicating emerging but not yet mainstream adoption of these processing routes in this corpus.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Heat treatment method for realizing grain boundary…
The present disclosure provides a heat treatment method for realizing grain boundary serration in a nickel-based superalloy forging, including introducing a serrated grain boundary into a microstructure of a nickel-based superalloy forging by using a heat treatment method for controlling a cooling rate; the heat treatment method for controlling cooling… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Repaired nickel based superalloy | 158 |
| 2 | Single crystal nickel-based superalloy | 153 |
| 3 | Nickel-based single crystal superalloy and method … | 100 |
| 4 | Heat treatment devices and method of operation the… | 81 |
| 5 | Method for producing crack-resistant high strength… | 68 |
| 6 | Single crystal castings | 67 |
| 7 | Single crystal nickel superalloy | 64 |
| 8 | Single crystal nickel superalloy | 59 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D investment decisions
Four dimensions — maturity, concentration, collaboration, and geography — each carry distinct implications for teams deciding where to build or defend positions in nickel superalloy microstructure.
Post-peak field: core composition space is well-claimed
The lifecycle stage is Decline, with annual filings easing back from the 2020 peak. The dominant C22C and C22F classes are densely populated, suggesting that broad compositional claims are largely exhausted. R&D investment is better directed toward differentiated processing routes — additive manufacturing, powder metallurgy, and crystal growth — where claim density is lower.
Post-peak · 2020 apexTwo-tier structure: leaders hold deep positions, mid-tier is open
The top five filers hold 39% of the hundred largest filers’ combined total, with Safran SA and General Electric Co well ahead of all others. This gap means that head-to-head competition with the leaders on core single-crystal alloy composition is resource-intensive. Entrants with focused differentiation on processing or joining technology face a less crowded competitive landscape.
Moderate concentrationSafran-anchored French consortium is the most active co-filing network
The most active co-filing pairs are Safran SA with CNRS (32 joint records), Safran SA with ONERA (27), Safran SA with the University of Nantes (17), and CNRS with the University of Poitiers (17). This dense French industry-academia cluster signals that collaborative IP generation is a structural feature of the field, and that working outside this network requires building alternative academic partnerships or acquiring from independent institutions.
French consortium dominantUS leads filing volume; Europe and China are secondary but significant
The United States is the primary filing jurisdiction, followed by Europe (EPO) and China. Japan, WIPO (PCT), Canada, and the UK form a secondary tier. South Korea and India are present at low levels. Teams seeking broad protection should prioritise US and EPO filings; those targeting manufacturing supply chains should note China’s growing share relative to its current count.
US-first, EPO secondGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Safran SA | French National Centre for Scientific Research (CNRS) | 32 |
| Safran SA | ONERA – The French Aerospace Lab | 27 |
| Safran SA | University of Nantes | 17 |
| French National Centre for Scientific Research (CNRS) | University of Poitiers | 17 |
| French National Centre for Scientific Research (CNRS) | University of Nantes | 17 |
| Safran SA | Safran Aircraft Engines SAS | 13 |
| Safran SA | University of Poitiers | 13 |
| French National Centre for Scientific Research (CNRS) | Safran Aircraft Engines SAS | 11 |
| Safran Aircraft Engines SAS | University of Poitiers | 11 |
| Safran SA | Aubert & Duval SA | 7 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Safran SA and General Electric Co lead, with diverging technology emphasis
The two top-ranked applicants share a focus on alloy composition and turbine applications but differ in the relative weight they place on heat-treatment versus turbine-component claims. Both show declining recent momentum from the 2020 peak.
Safran SA
Safran SA ranks first with 104 patent records. Its technology emphasis sits across C22C 19 (alloys), F01D 5 (turbines), and C22F 1 (heat treatment), reflecting an integrated programme that spans composition design through to blade-level application. Recent filing momentum shows a decline of 57% versus the prior period, consistent with the field’s post-2020 easing. Safran’s subsidiary Safran Aircraft Engines SAS is recorded separately as a new entrant in recent years, suggesting the group is restructuring IP ownership across entities.
104 patent recordsGeneral Electric Co
General Electric Co ranks second with 84 patent records, with the heaviest emphasis on C22C 19 (alloys) followed by C22F 1 (heat treatment) and F01D 5 (turbines) — a profile that leans more toward metallurgical treatment relative to Safran’s stronger turbine weighting. Recent momentum shows a decline of 62%, the steepest among the tracked leaders, which may reflect GE’s broader portfolio restructuring. GE Infrastructure Technology LLC appears separately in the ranking, adding further records at the group level.
84 patent records| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| General Electric Company | 6 | ▼ -62% |
| Safran SA | 25 | ▼ -57% |
| French National Centre for Scientific Research (CNRS) | 7 | ▼ -76% |
| ONERA – The French Aerospace Lab | 3 | ▲ new entrant |
| Safran Aircraft Engines SAS | 10 | ▲ new entrant |
| University of Poitiers | 7 | ▼ -30% |
Under-served processing branches adjacent to the core alloy composition space
Five IPC classes sit at lower claim densities relative to the dominant C22C class. Three of these — additive manufacturing, welding/brazing, and coatings — have plausible technical connections to microstructure control and realistic entry paths for teams not already competing on core alloy composition.
B33Y · Additive manufacturing (3D printing)
Additive manufacturing of nickel superalloys directly determines grain structure, precipitate distribution, and residual stress — all microstructure-level outcomes. With a relatively low share of records in this corpus, the intersection of AM process control and superalloy microstructure is an under-served branch. Entry paths include process-parameter optimisation, post-build heat treatment for microstructure homogenisation, and topology-optimised component design that exploits AM-specific microstructures. Academic collaborators in the existing French network have not yet heavily populated this class, leaving room for new partnerships.
Search this in Eureka →C23C · Coating & surface deposition
Coating and surface deposition sits at a relatively sparse share of records in this corpus despite its direct relevance to surface microstructure, oxidation resistance, and bond-coat interdiffusion in thermal barrier systems. The low count relative to the C22C bulk suggests that coating-microstructure interactions — particularly at the substrate interface — are not yet heavily claimed from a microstructure perspective. Teams with competence in physical vapour deposition or chemical vapour deposition targeting superalloy substrates could build differentiated positions here without directly challenging the core alloy composition leaders.
Search this in Eureka →How leaders differ by technology route across alloy, treatment, and turbine classes
Route coverage across the main technology branches in the current evidence set.
| Player | C22C 19 · Alloys | C22F 1 · Non-ferrous metal treatment | F01D 5 · Turbines & non-positive engines | C22C 1 · Alloys | C30B 29 · Crystal growth |
|---|---|---|---|---|---|
| General Electric Company | Strong · 109 | Moderate · 39 | Moderate · 37 | Emerging · 14 | Emerging · 12 |
| Safran SA | Strong · 102 | Emerging · 10 | Strong · 61 | Emerging · 7 | Emerging · 6 |
| Cannon Muskegon Corporation | Strong · 39 | Moderate · 8 | Emerging · 7 | Absent | Strong · 29 |
| French National Centre for Scientific Research (CNRS) | Strong · 36 | Emerging · 7 | Strong · 25 | Absent | Absent |
| United Technologies Corporation | Strong · 35 | Strong · 24 | Absent | Emerging · 4 | Emerging · 3 |
| ONERA – The French Aerospace Lab | Strong · 35 | Moderate · 9 | Moderate · 15 | Absent | Absent |
| Safran Aircraft Engines SAS | Strong · 19 | Absent | Strong · 10 | Absent | Emerging · 3 |
Frequently asked questions
Among the hundred largest filers, Safran SA ranks first with 104 patent records, followed by General Electric Co with 84 and Cannon Muskegon Corp with 42. The top five together hold 39% of the combined total of those hundred filers.
The lifecycle stage is assessed as Decline, with annual filings easing back from a peak of 51 records in 2020. The most recent years (2024–2026) show low counts that are partly attributable to publication lag and should be treated as provisional, but the underlying trend from the 2020 peak is downward.
The United States is the leading filing jurisdiction by record count, followed by Europe (EPO) and China. Teams seeking broad protection should prioritise US and EPO filings as a baseline, with China as a secondary priority given its growing industrial relevance in superalloy manufacturing.
C22C (Alloys) is by far the most densely populated IPC class, followed by C22F (non-ferrous metal treatment) and F01D (turbines). Additive manufacturing (B33Y), crystal growth (C30B), welding and brazing (B23K), and coatings (C23C) are present at lower record counts and represent relatively less-crowded adjacent branches.
The most active co-filing pairs are Safran SA with CNRS (32 joint records), Safran SA with ONERA (27), Safran SA with the University of Nantes (17), and CNRS with the University of Poitiers (17). This French industry-academia network is the dominant collaboration cluster in the field.
The most-cited documents in this corpus cover repaired nickel-based superalloys (158 citations), single-crystal nickel-based superalloys (153 citations), nickel-based single-crystal superalloy compositions and methods (100 citations), and heat treatment devices and methods (81 citations). Single-crystal design and repair processes are clearly the most influential technical areas by citation impact.
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