Thermoplastic Composite Additive Manufacturing Patent Landscape
The thermoplastic composite AM space is in a growth stage with 52 patent families on record and filings rising on a multi-year basis, led by aerospace primes and specialist AM equipment makers. Northrop Grumman Systems Corp holds the largest individual position, and the top five filers together account for 40% of the hundred largest filers’ combined output, signalling a moderately concentrated but still-open field.
Aerospace primes lead a moderately concentrated field
Northrop Grumman Systems Corp ranks first with 7 patent families, followed by Rohr Inc with 6 and a cluster of AM equipment and materials specialists — 3D Systems Inc, Spirit AeroSystems Inc, and Rogers Corp — filling out the top five.
The top five filers hold 40% of the hundred largest filers’ combined total, indicating meaningful concentration at the top without foreclosing entry. A second tier of applicants each holding 2 patent families broadens the competitive base across both industry and academia.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Northrop Grumman Systems Corp | 7 | |
| 2 | Rohr Inc | 6 | |
| 3 | 3D Systems Inc | 3 | |
| 4 | Spirit AeroSystems Inc | 3 | |
| 5 | Rogers Corp | 2 | |
| 6 | Nexa3D Inc | 2 | |
| 7 | John Tyson II | 2 | |
| 8 | Stratasys Inc | 2 | |
| 9 | Trelleborg Sealing Solutions Albany Inc | 2 | |
| 10 | NANJING UNIV OF AERONAUTICS & ASTRONAUTICS | 2 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | The Boeing Company | 2 | |
| 12 | Essentium Inc | 2 | |
| 13 | Dalian University of Technology | 2 | |
| 14 | National Institute of Technology Silchar | 2 | |
| 15 | Nanjing Tesure Composite Materials Co Ltd | 1 | |
| 16 | Nanjing Tech University | 1 | |
| 17 | Xi’an Jiaotong University | 1 | |
| 18 | Beijing National Innovation Institute of Lightweight Ltd | 1 | |
| 19 | Solvay Specialty Polymers USA LLC | 1 | |
| 20 | Decathlon SA | 1 |
The dominance of aerospace-oriented assignees — Northrop Grumman, Rohr, Spirit AeroSystems, and Boeing — signals that structural aerospace components are the primary commercial pull for thermoplastic composite AM today, creating a well-defined but narrow incumbent stronghold.
The most recent 18–24 months of filings are under-counted due to patent publication lag; the 2025–2026 figures in the trend chart should be read as a floor, not a ceiling. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year growth with aerospace and AM process classes dominant
Annual filing volume has grown 133% over the measured window, with the 2024 cohort reaching 14 patent families before the publication-lag taper. The technology mix is anchored in plastics-shaping and AM-specific classifications, with several adjacent branches that remain sparsely covered.
Annual filing trend
Filings were modest from 2017 through 2020 (2–5 families per year), then stepped up from 2021 onward, reaching a visible peak of 14 families in 2024. The 2025 and 2026 totals (3 and 2 respectively) reflect publication lag and should not be interpreted as a real deceleration.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B29C (Shaping of plastics) and B33Y (Additive manufacturing) together account for the two largest branches, confirming that process innovation is the primary focus. Lower-frequency branches — B29K, B29L, B32B, B64C, and C08L — mark adjacent areas where coverage is comparatively sparse.
↗ 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.
Thermoplastic composite components and method for …
A method for forming a thermoplastic composite component includes forming a composite sheet using an additive manufacturing assembly. The composite sheet includes a thermoplastic continuous-fiber body including a first side surface, a second side surface, and a perimeter edge. The first side surface is disposed opposite the second side surface. The… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Melt processable thermoplastic composite comprisin… | 34 |
| 2 | In-situ monitoring of thermoformable composites | 32 |
| 3 | 基于同步送丝和送粉搅拌摩擦增材制造的硬质相增强金属基复合材料及制备方法 | 19 |
| 4 | Process for reinforcing continuous fiber additivel… | 14 |
| 5 | Fiber-reinforced Thermoplastic Composite Structure… | 12 |
| 6 | Atmospheric plasma conduction pathway for the appl… | 11 |
| 7 | Bonding for additively manufactured thermoplastic … | 11 |
| 8 | Atmospheric plasma conduction pathway for the appl… | 9 |
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
Three structural factors shape where new entrants can compete: the field’s growth stage, the tier gap between the top filers and the rest, the absence of cross-organisation co-filing, and a clear geographic concentration in the. United States.
Growth stage with rising annual volume
The lifecycle evidence classifies this field as Growth, with a 133% increase in filings over the measured window and the 2024 cohort setting the period high at 14 patent families. The most recent two years are understated by publication lag, so the true trajectory is likely steeper than the raw chart implies. Teams entering now are competing in an expanding but not yet crowded space.
Growth stageTop five hold 40% of the hundred largest filers’ output
Northrop Grumman Systems Corp (7 patent families), Rohr Inc (6), 3D Systems Inc (3), Spirit AeroSystems Inc (3), and Rogers Corp (2) together represent 40% of the top hundred filers’ combined volume. The second tier — eight assignees each at 2 patent families — shows a meaningful step-down. New entrants with process or materials differentiation can still build defensible positions outside the incumbent stronghold.
Moderate concentrationNo recorded cross-organisation co-filing detected
The collaboration evidence returns no co-applicant pairs, meaning all filings in scope are single-assignee or individual-inventor filings. This absence is notable in a capital-intensive field: it suggests either that joint development agreements are kept confidential, that consortia prefer other IP structures, or that the technology is still too early-stage for formalised partnerships. For an entrant, it also means no incumbent coalition to navigate around.
No co-filing detectedUS leads; China and EPO form a meaningful secondary ring
The United States is the top filing jurisdiction with 20 patent records, followed by China with 11 and Europe (EPO) with 9. WIPO PCT filings (7) indicate applicants are preserving international rights. Austria (2), India (2), Spain (1), Turkey (1), and Taiwan (1) appear at the margin. For R&D teams, freedom-to-operate risk is highest in the US, while China and EPO represent growing but still-secondary enclosures.
US-centric, China risingGo 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.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Northrop Grumman and Rohr anchor the aerospace-prime tier
The top two filers are both aerospace-defence primes with overlapping process focus, while the challenger tier includes AM equipment specialists and academic institutions entering as new filers.
Northrop Grumman Systems Corp
Northrop Grumman holds 7 patent families, the largest position in the corpus. Its technology emphasis spans B29C 64 (extrusion/FFF-type shaping), B29C 70 (fibre-reinforced composites), and B33Y 10 (AM process methods), indicating a broad process-and-material integration strategy oriented toward structural aerospace components. Momentum data classifies the organisation as an established presence rather than a new entrant.
families: 7Rohr Inc
Rohr Inc holds 6 patent families and is classified as a new entrant in the recent filing window, meaning its position was built rapidly in the most recent period. Its focus clusters around B29C 70 (fibre-reinforced composite shaping), B64C 27 (rotorcraft and aerospace structures), and B29L 31 (specific plastic articles), pointing to a targeted application in aerospace nacelle and structural parts rather than general AM process development.
families: 6| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Rohr Inc | 6 | ▲ new entrant |
| Daher Aerospace | 3 | ▲ new entrant |
| Shenling Aerospace Systems Co Ltd | 3 | ▲ new entrant |
| Essentium Inc | 1 | ▲ new entrant |
| 3D Systems Inc | 3 | ▲ new entrant |
| Nanjing University of Aeronautics and Astronautics | 2 | ▲ new entrant |
Under-served routes in materials formulation and aerospace-specific structures
Several IPC branches adjacent to the dominant B29C and B33Y core carry low patent-record counts relative to the overall corpus, pointing to areas where technical coverage is thin. These observations reflect relative sparsity; whether they represent viable entry points depends on an applicant’s specific technical capabilities.
B32B · Layered products and laminates
B32B appears in only 4 patent records — 3% of the branch distribution — despite layered multi-material constructs being a natural output of thermoplastic composite AM. The sparse coverage suggests that claims specifically directed at the laminate architecture of printed thermoplastic-composite parts, rather than the shaping process itself, remain largely unclaimed. Teams with novel interlayer bonding or hybrid-material stack designs may find room to build differentiated positions here.
Search this in Eureka →B64C · Aeroplanes and helicopters
B64C carries only 4 patent records despite aerospace being the dominant end-market for the top filers, including Rohr’s explicit rotorcraft focus. Coverage at the component-design level — rather than the process level — is thin, which creates potential space for claims tied to specific aerospace part geometries or performance requirements enabled by thermoplastic composite AM. Entry here likely requires both AM process capability and aerospace qualification knowledge.
Search this in Eureka →How leaders differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | B29C 64 · Shaping of plastics | B33Y 10 · Additive manufacturing (3D printing) | B29C 70 · Shaping of plastics | B33Y 30 · Additive manufacturing (3D printing) | B33Y 70 · Additive manufacturing (3D printing) |
|---|---|---|---|---|---|
| Northrop Grumman Systems Corp | Strong · 5 | Strong · 4 | Strong · 5 | Strong · 3 | Strong · 4 |
| Essentium Inc | Strong · 3 | Strong · 3 | Absent | Strong · 3 | Strong · 3 |
| 3D Systems Inc | Strong · 3 | Strong · 3 | Strong · 2 | Absent | Moderate · 1 |
| Rohr Inc | Moderate · 2 | Moderate · 2 | Strong · 5 | Absent | Absent |
| National Institute of Technology Silchar | Strong · 2 | Strong · 2 | Absent | Strong · 2 | Strong · 2 |
| Nanjing University of Aeronautics and Astronautics | Strong · 2 | Strong · 2 | Absent | Strong · 2 | Absent |
Frequently asked questions
The corpus contains 52 patent families in scope as of the analysis date. This total reflects a growth-stage field and the most recent 18–24 months are under-counted due to publication lag.
Northrop Grumman Systems Corp leads with 7 patent families, followed by Rohr Inc with 6. Both are aerospace-defence primes, reflecting the field’s strong pull from structural aerospace applications.
Filing volume has grown 133% over the measured window, with 2024 being the peak year at 14 patent families. The 2025–2026 figures are understated by publication lag and should be treated as a floor.
The United States leads with 20 patent records, followed by China with 11 and Europe (EPO) with 9. WIPO PCT filings number 7, indicating applicants are preserving international coverage. Freedom-to-operate risk is currently highest in the US.
Yes. B32B (Layered products and laminates) and B64C (Aeroplanes and helicopters) each appear in only 4 patent records — 3% of the branch distribution each — despite being technically adjacent to the field’s core applications. B29K and B29L are also comparatively sparse.
No co-applicant filings are recorded in the evidence. All filings appear to be single-assignee or individual-inventor patents, suggesting that joint development in this area has not yet translated into co-filed IP, or that collaboration is structured outside the patent system.
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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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