Nickel Superalloy Heat Treatment Patent Landscape
The nickel superalloy heat treatment field is in a growth stage, with multi-year filing volume up 89% and activity concentrated among a small tier of Western aerospace primes and emerging Chinese state-linked players. General Electric leads the applicant ranking, but Chinese institutions are entering at pace, reshaping competitive dynamics across alloy treatment and additive-adjacent branches.
General Electric leads a moderately concentrated field with rising Chinese challengers
General Electric holds the top position in the applicant ranking, followed by United Technologies Corporation and Safran’s predecessor entity SNECMA, forming a clear Western aerospace prime tier. Gaona Aero Material and the Institute of Metal Research (Chinese Academy of Sciences) rank fifth and seventh respectively, signalling a structural shift toward Chinese state-linked participants.
The top five filers account for 24% of the combined total across the hundred largest filers — a moderate concentration level that leaves meaningful room for mid-tier challengers. The gap between the leader (36 patent records) and the fifth-ranked applicant (18 patent records) is substantial but not prohibitive, suggesting the field has not yet consolidated around one or two dominant players.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | General Electric Company | 36 | |
| 2 | United Technologies Corporation | 26 | |
| 3 | SN DETUDE & DE CONSTR DE MOTEURS DAVIATION (S N E … | 24 | |
| 4 | Cannon Muskegon Corporation | 19 | |
| 5 | Gaona Aero Material Co., Ltd. | 18 | |
| 6 | GE Power (General Electric Technology GmbH) | 17 | |
| 7 | Institute of Metal Research, Chinese Academy of Sciences | 16 | |
| 8 | Honda Motor Co., Ltd. | 13 | |
| 9 | Ansaldo Energia Switzerland AG | 12 | |
| 10 | Safran Aircraft Engines SAS | 12 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Rolls-Royce PLC | 12 | |
| 12 | Safran SA | 11 | |
| 13 | Toshiba Corporation | 11 | |
| 14 | UNIV OF SCI & TECH BEIJING | 10 | |
| 15 | OFFICE NAT DETUDES & DE RECH AEROSPATIALES | 10 | |
| 16 | French National Centre for Scientific Research (CNRS) | 9 | |
| 17 | Xi’an Thermal Power Research Institute Co., Ltd. | 9 | |
| 18 | U.S. Turbo | 8 | |
| 19 | Central South University | 8 | |
| 20 | Northeastern University (China) | 7 |
Western primes retain depth in core non-ferrous treatment and alloy composition branches, while Chinese entrants are building positions in both established IPC classes and adjacent manufacturing routes such as powder metallurgy and additive manufacturing. This dual-front activity implies competitive pressure on both process know-how and materials-system patents.
The most recent 18–24 months of filing data are subject to publication lag and will undercount actual activity; trend and ranking figures should be read with that in mind. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Annual filings are rising and technology coverage is broadening beyond core alloy treatment
Two complementary views — the annual filing trend and the IPC branch breakdown — reveal a field that is both growing in volume and diversifying in technical scope, with additive manufacturing and powder metallurgy emerging as increasingly active adjacent areas.
Annual filing trend
Filing volume grew substantially over the analysis window, with the field recording its highest observed annual counts in 2023, 2024, and 2025. The 2026 figure (8 records) reflects publication lag rather than a real drop and should be discounted. The 89% multi-year growth figure confirms sustained upward momentum across the period.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Non-ferrous metal treatment (C22F) and alloys (C22C) dominate the IPC mix, consistent with a field centred on alloy composition and thermal processing protocols. Powder metallurgy (B22F), general heat treatment (C21D), turbine applications (F01D), and additive manufacturing (B33Y) each occupy meaningful secondary positions, showing that the field extends well into manufacturing process and end-use application branches.
↗ 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 | Nickel-based single crystal superalloy and method … | 100 |
| 2 | Heat treatment devices and method of operation the… | 81 |
| 3 | Method for producing crack-resistant high strength… | 68 |
| 4 | Single crystal castings | 67 |
| 5 | Single crystal nickel superalloy | 64 |
| 6 | Single crystal nickel superalloy | 59 |
| 7 | Method of manufacturing a workpiece of any given c… | 55 |
| 8 | Processing of nickel-base alloys for improved fati… | 54 |
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 competitive structure means for R&D investment decisions
Four structural observations — maturity stage, concentration, collaboration patterns, and geographic filing footprint — each carry distinct implications for teams choosing where to commit R&D resources or file defensive positions.
Growth stage with publication-lag caveat on recent counts
The lifecycle evidence places this field firmly in Growth, with annual filings still rising and the multi-year window up 89%. The field has not yet reached a consolidation or plateau phase, meaning early positional moves in adjacent branches still carry meaningful competitive value. Teams should plan for continued volume increases as publication lag resolves for 2024–2025 filings.
Growth stageModerate top-tier concentration; mid-tier remains open
The top five filers hold 24% of the hundred largest filers’ combined total, a level that indicates moderate but not extreme concentration. A second tier — including General Electric Technology GmbH, Ansaldo Energia, Safran Aircraft Engines, and Rolls-Royce — each holds between 12 and 17 patent records, indicating that mid-tier positions are real and defensible. New entrants from China are already closing the gap with incumbent mid-tier players.
Mid-tier openCo-filing concentrated within corporate families and national ecosystems
The most active co-filing pair is Gaona Aero Material (Beijing) with its affiliate Sichuan CISRI-Gaona Forging (4 joint filings), reflecting intra-group coordination. SNECMA co-files with both a commercial partner and the French aerospace research institute ONERA (2–3 joint filings each). ABB’s two entities co-file jointly (3 filings). The Institute of Metal Research co-files with both Shanghai Institute of Applied Physics and Northeastern University China (2 filings each). Cross-border or cross-sector collaboration outside these clusters is sparse, suggesting an ecosystem where alliance-building remains an underexploited lever.
Ecosystem gapsChina dominates filing volume; EPO and US are parity second-tier jurisdictions
China is the lead filing office by a wide margin, followed by Europe (EPO) and the United States at equal counts, then Japan. The United Kingdom, Canada, and WIPO PCT filings each represent smaller but non-trivial secondary positions. This distribution reflects both the scale of Chinese domestic R&D investment in superalloys and the importance of protecting inventions across the major aerospace manufacturing jurisdictions simultaneously.
China-led geographyGo 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 |
|---|---|---|
| Gaona Aero Material Co., Ltd. | Sichuan CISRI-Gaona Forging Co., Ltd. | 4 |
| Safran Aircraft Engines (SNECMA) | A A HISTROM CORP | 3 |
| ABB Ltd. | ABB AG (Germany) | 3 |
| Safran Aircraft Engines (SNECMA) | ONERA – The French Aerospace Lab | 2 |
| Gaona Aero Material Co., Ltd. | China Iron & Steel Research Institute Group Co., Ltd. | 2 |
| Institute of Metal Research, Chinese Academy of Sciences | Shanghai Institute of Applied Physics, Chinese Academy of Sciences | 2 |
| Institute of Metal Research, Chinese Academy of Sciences | Northeastern University (China) | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
GE anchors the field; Chinese state-linked entrants are the fastest-moving challengers
The leader board splits into an established Western aerospace prime tier and a fast-moving Chinese institutional cohort. Applicant momentum data highlight two Chinese players as new entrants with rapidly building recent-period counts.
General Electric
General Electric holds 36 patent records at the top of the ranking, with technology emphasis concentrated in non-ferrous metal treatment (C22F 1, 51 sub-records), nickel alloy composition (C22C 19, 37 sub-records), and welding and joining processes (B23K 31, 17 sub-records). This breadth — spanning thermal processing, alloy design, and repair/joining — reflects a vertically integrated IP strategy across the turbine component lifecycle. Momentum data for the recent period are not separately broken out for GE, indicating a sustained rather than accelerating trajectory.
patent records: 36Gaona Aero Material (CISRI-Gaona)
Gaona Aero Material Co. Ltd. ranks fifth overall with 18 patent records and is flagged as a new entrant in the momentum data, having built 13 recent-period records — the highest recent-period count among tracked momentum entrants. Its technology focus spans non-ferrous treatment (C22F 1, 18 sub-records), nickel alloy composition (C22C 19, 16 sub-records), and alloy preparation (C22C 1, 12 sub-records), closely mirroring the incumbent leaders’ core branches. The Institute of Metal Research (Chinese Academy of Sciences), also flagged as a new entrant with 7 recent-period records, adds a research-institute dimension to China’s fast-rising position.
patent records: 18| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Gaona Aero Material Co., Ltd. | 13 | ▲ new entrant |
| Institute of Metal Research, Chinese Academy of Sciences | 7 | ▲ new entrant |
Under-served branches worth monitoring: additive manufacturing and crystal growth
Several IPC branches appear at lower share relative to the dominant C22F and C22C classes, yet carry clear technical relevance to nickel superalloy heat treatment. Two in particular combine plausible technical value with a realistic entry path for players already active in the core domain.
B33Y · Additive manufacturing (3D printing)
Additive manufacturing accounts for 5% of IPC branch records in this corpus — sparse relative to conventional processing branches yet directly relevant, since laser powder-bed fusion and directed-energy deposition of nickel superalloys require carefully designed post-build heat treatment cycles to relieve residual stress and achieve target microstructures. Entry paths are realistic for players already holding C22F or B22F positions, and the convergence of AM process development with heat treatment optimisation is a documented technical gap in the literature. The branch is an observation of relative sparsity; whether it constitutes a commercial opportunity depends on the entrant’s existing process capability.
Search this in Eureka →C30B · Crystal growth
Crystal growth (C30B) holds 4% of IPC branch records, concentrated mainly among Cannon Muskegon and United Technologies — both specialists in single-crystal casting for turbine blades. The branch is sparse at the corpus level, yet single-crystal and directionally solidified heat treatment protocols represent high-value IP for hot-section turbine components. Players with existing alloy-composition portfolios (C22C 19) could extend into C30B through work on post-solidification annealing and homogenisation cycles for single-crystal components. Again, this is an observation of relative sparsity and should be validated against a player’s specific technical roadmap before committing R&D resources.
Search this in Eureka →How leading applicants differ by technology route emphasis
Route coverage across the main technology branches in the current evidence set.
| Player | C22F 1 · Non-ferrous metal treatment | C22C 19 · Alloys | C22C 1 · Alloys | F01D 5 · Turbines & non-positive engines | B22F 10 · Powder metallurgy |
|---|---|---|---|---|---|
| General Electric Company | Strong · 51 | Strong · 37 | Absent | Moderate · 15 | Absent |
| United Technologies Corporation | Strong · 29 | Strong · 29 | Absent | Emerging · 5 | Absent |
| Gaona Aero Material Co., Ltd. | Strong · 18 | Strong · 16 | Strong · 12 | Moderate · 9 | Absent |
| Alstom Technology Ltd. | Strong · 21 | Strong · 18 | Absent | Strong · 14 | Absent |
| Safran Aircraft Engines (SNECMA) | Strong · 28 | Moderate · 13 | Absent | Absent | Absent |
| Institute of Metal Research, Chinese Academy of Sciences | Strong · 18 | Strong · 13 | Moderate · 4 | Absent | Moderate · 4 |
| Honda Motor Co., Ltd. | Strong · 13 | Strong · 13 | Absent | Absent | Absent |
Frequently asked questions
The analysed corpus contains 277 patent families in scope. This total covers global filings across the major patent offices and is the basis for the applicant ranking and trend analysis presented here.
General Electric Co. leads the ranking with 36 patent records, ahead of United Technologies Corporation (26) and SNECMA (24). These three form a clear first tier among the top 100 ranked applicants.
China is the lead filing jurisdiction by a substantial margin. Europe (EPO) and the United States are the next most active offices at equal counts, followed by Japan. This distribution reflects both domestic Chinese investment and the need for protection across major aerospace manufacturing markets.
Multi-year filing volume is up 89% across the analysis window, placing the field in a Growth lifecycle stage. Annual counts reached observed highs in 2023, 2024, and 2025. The 2026 figure is suppressed by publication lag and should not be read as a decline.
Non-ferrous metal treatment (C22F) and nickel alloy composition (C22C) dominate. Secondary branches include powder metallurgy (B22F), general heat treatment (C21D), turbine applications (F01D), and additive manufacturing (B33Y), reflecting the field’s extension into manufacturing processes and end-use applications.
Yes. Gaona Aero Material ranks fifth (18 patent records) and the Institute of Metal Research (Chinese Academy of Sciences) ranks seventh (16 patent records). Both are flagged as new entrants in the momentum data, with Gaona recording the highest recent-period count (13 records) among momentum-tracked entrants. Their technology focus closely mirrors the core branches held by Western primes, indicating direct competitive overlap rather than complementary positioning.
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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.
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