Electron Beam Melting Interface Patents: Leaders & Trends 2026
- Filing already peaked. 2019 recorded the most filings in the set (10), and the count at the 2022 midpoint (6) sits below that peak — this is a maturing niche, not a growing one.
- One imaging-and-feedback family dominates citations. The IPG Photonics coherent-imaging family draws far more citations than any other record here, meaning most later filers are building around, not on top of, older art.
- Claims cluster in plastics and metal shaping, not welding. B29C and B33Y subclasses cover nearly all records, while B23K (welding/brazing) appears in fewer than two-thirds — fusion-boundary claims are being written as shaping patents first.
What this landscape covers
This dataset tracks patent families at the intersection of electron beam melting and electron beam powder bed fusion with claims specifically addressing inter-layer bonding, build-plate interface control, or fusion boundary management. It is a narrow, interface-specific slice of the broader additive manufacturing patent corpus, not a survey of EBM machinery generally.
Twenty-four families span 2015 through the current cut-off, with filings concentrated in the United States and a smaller share routed through Europe, WIPO and individual national offices. Publication lags filing by roughly eighteen months, so the most recent year's near-zero count understates real activity rather than signalling an abrupt stop.
Filing trend and technology composition
Two views of the same 24-family set: how filing activity moved year over year, and which IPC subclasses carry the claim weight.
A single peak, then decline
Filings rose from 2 in 2017 to a peak of 10 in 2019, then eased to 6 by the 2022 midpoint. There is no second wave visible in the data — this looks like one cluster of activity around a specific technical push rather than a sustained build-out.
Shaping and printing dominate, welding is secondary
B29C (plastics shaping) and B33Y (additive manufacturing) each appear in the large majority of records, with B22F (powder metallurgy) and B23K (welding/brazing) close behind. G01B and G01N — measurement and material testing — sit at the edge, suggesting inspection and validation methods are still a smaller, later-forming claim category.
Shares are the percentage of the 24 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Electron Beam Melting Interface Engineering with Eureka
This page is one run against one query. Ask Eureka your own question about electron beam melting interface engineering and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited record in this set
Methods and Systems for Coherent Imaging and Feedback Control for Modification of Materials
Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser, sintering, and welding applications. An imaging optical source produces imaging light; a feedback controller adjusts at least one processing parameter based on an interferometry output. A method of processing interferograms based on homodyne filtering is provided, along with a method of generating a record of the material modification process from the interferometry output.Filed by IPG Photonics; the family behind this filing carries the highest citation count in the dataset by a wide margin.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20170120337A1 | Methods and Systems for Coherent Imaging and Feedback Control for Modification of Materials | 231 |
| 2 | US10124410B2 | Methods and systems for coherent imaging and feedback control for modification of materials | 43 |
| 3 | US20180297117A1 | Methods and Systems for Coherent Imaging and Feedback Control for Modification of Materials | 26 |
| 4 | US10898969B2 | Methods and systems for coherent imaging and feedback control for modification of materials | 8 |
| 5 | US20210138579A1 | Methods and Systems for Coherent Imaging and Feedback Control for Modification of Materials | 5 |
| 6 | WO2019166523A1 | Metal 3D printing with local pre-heating | 5 |
| 7 | US20220106233A1 | Use of a composition comprising a high level of inorganic material(s) and a thermoplastic elastomer in an add… | 4 |
| 8 | EP3676035A1 | Metal 3D printing with local pre-heating | 4 |
| 9 | US20220390366A1 | Methods and systems for coherent imaging and feedback control for modification of materials | 3 |
| 10 | US20210237342A1 | Cross-Linkable Thermoplastic Polymeric Materials for Use in Additive Manufacturing | 3 |
Citation counts inside this searched corpus favour older filings; treat them as a signal of influence on later filers, not of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-throughs from the trend, composition and citation data specific to this dataset.
The cluster has already crested
Activity rose sharply to a 2019 peak and has since eased. Combined with a near-zero latest-year count that is at least partly a publication-lag artifact, the honest read is a technology area that saw a concentrated push and has not repeated it.
Interface claims are written as shaping patents
Nearly every record sits in B29C or B33Y, with B23K welding claims present in a smaller subset. Filers are framing fusion-boundary and inter-layer bonding control as part of the shaping/printing process step, not as a welding-adjacent claim.
One imaging approach anchors the field
The coherent-imaging and feedback-control family from IPG Photonics is cited far more than any other record. Later filers referencing interferometry-based process control are almost certainly citing back to this lineage.
Filing here is mostly solo
Only one co-assignee pairing appears across the set, and it is a single instance. This is a field of independent filers rather than joint ventures or dense research consortia.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to electron beam melting interface engineering, with the prior art for and against each one.
Who is active, and where the gate sits
Recent-year momentum across tracked assignees shows uniformly flat activity, not a leader pulling away.
No one is currently filing
Every assignee tracked for recent-year momentum, including established equipment and university filers, shows zero filings in the latest year. One tracked filer shows a full year-over-year drop to zero. This is consistent with the broader trend decline rather than any single company retreating.
IPG Photonics set the reference point
The coherent-imaging feedback-control family holds the highest-cited publications in the set by a large margin. Anyone filing control-loop or in-process monitoring claims in this space should expect to be measured against this lineage.
US-first filing pattern with a thin PCT tail
Just under half the records route through the United States, with Europe and WIPO carrying smaller shares and single filings scattered across Austria, Canada and Germany. There is no dense multi-jurisdiction family here — most filers are protecting a home market first.
| Assignee | Recent year | YoY |
|---|---|---|
| VALCUN BVBA | 0 | — |
| IPG Photonics Corporation | 0 | — |
| Chuangzhen Co., Ltd. | 0 | — |
| Arivo Ltd. | 0 | — |
| Queen's University | 0 | — |
| Indian Institute of Technology Kharagpur | 0 | -100% |
| Capnovia Inc. | 0 | — |
| Université de Bretagne Sud | 0 | — |
Where to take this analysis
The trend and composition data point to a narrow, already-peaked cluster with one dominant citation anchor. Two directions follow from that.
Map the coherent-imaging family's claim boundaries
Before filing any in-process monitoring or feedback-control claim touching electron beam interfaces, run a claim-chart comparison against the IPG Photonics coherent-imaging lineage — it is the citation anchor for this entire dataset.
Explore in EurekaCheck the under-claimed branches directly
Metrology, thermal-gradient control and cross-material bonding show thin coverage relative to the core shaping and printing classes. A targeted search in Eureka against those specific sub-areas will confirm whether the gap is real or an artifact of this search string.
Run a white-space search in EurekaCommon questions on this landscape
Based on citation counts within this dataset, the family filed by IPG Photonics covering coherent imaging and feedback control for material modification is the clear anchor, with its earliest publication drawing far more citations than any other record tracked. That does not mean IPG Photonics holds the most patents overall in this niche — only that this particular filing is the one most other filers reference. Anyone building in-process monitoring or feedback-control features for EBM interfaces should review this family closely before drafting claims.
Filing activity peaked at 10 records in 2019 and had eased to 6 by the 2022 midpoint of the tracked period, with the most recent years showing very few filings. Some of that recent-year drop is a publication-lag artifact, since filings typically take about eighteen months to appear in public records. Taken together, though, the shape of the curve — rise, peak, decline — points to a technology cluster that has already had its main filing wave rather than one still building.
The large majority of records sit in IPC subclasses B29C (plastics shaping) and B33Y (additive manufacturing/3D printing), with powder metallurgy (B22F) and welding/brazing (B23K) close behind. Measurement and material-testing classes (G01B, G01N) appear in a smaller share of records, suggesting that inspection and validation methods around fusion boundaries are a less-claimed category than the core process and shaping claims. This composition suggests most inter-layer bonding and build-plate interface claims are framed as part of the shaping or printing step itself, not as separate metrology inventions.
Independently, almost entirely. The co-assignee analysis for this dataset surfaces only one joint-filing pair, and it appears just once across the full 24-family set. That is a strong signal that this is a field of individual corporate or academic filers protecting their own process innovations, rather than one built on research consortia or joint ventures — worth knowing if you are scouting for potential licensing or collaboration partners.
The thinnest claim coverage relative to the core shaping and printing classes sits around in-process fusion boundary metrology, build-plate thermal gradient control, powder-bed inter-layer defect feedback loops, and cross-material interface bonding for hybrid builds. These are inferred from the IPC composition gap between the dominant B29C/B33Y classes and the thinner G01B/G01N measurement classes, not from an exhaustive freedom-to-operate search. Before filing in any of these areas, run a dedicated search against that specific sub-area, since a 24-family dataset built on one search string can understate coverage that a broader query would surface.
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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.