The dataset shows filings climbing to a peak of 28 in 2019 before easing to 13 by 2022, with no later year exceeding that peak. This pattern typically means the core mechanisms for scaling EBM output — multi-beam control, powder handling, throughput improvements — were substantially claimed by the early filers, leaving later applicants to file narrower improvement or design-around patents. It does not mean interest in the technology itself declined; publication lag also means the last one to two years in any such dataset understate true filing activity until later data catches up.

In this corpus, powder metallurgy (B22F) appears in 52 of 82 families, more than the 40 tagged under additive manufacturing's own class (B33Y). That means a meaningful share of the intellectual property protecting EBM scale-up covers powder characteristics, particle handling and metallurgical process steps rather than beam-system or build-chamber engineering. Anyone doing freedom-to-operate work on EBM throughput should search powder-metallurgy claims as thoroughly as additive-manufacturing ones, since the two overlap heavily in this field.

European Patent Office filings and United States filings are nearly level in this dataset, at 26 and 25 respectively, with smaller but real activity through the WIPO/PCT route, Germany, Austria and Canada. That spread suggests companies scaling EBM production are protecting claims across multiple major manufacturing regions rather than filing predominantly in one home market. A company evaluating its own filing strategy should treat EPO and US coverage as roughly equally important baselines.

EP3061546A1, filed by Ansaldo Energia IP UK Limited, describes converting a part's final-geometry CAD data into morphed CAD data that pre-compensates for distortions expected during the additive build and any post-processing steps, with the explicit goal of cheaper and faster serial production. It is a process patent centred on the CAD-morphing step rather than on the electron beam hardware itself. Anyone building a distortion-compensation workflow for AM serial production should review this filing's claim scope closely before assuming a similar morphing approach is open to use.

Based on the IPC composition, several adjacent branches carry noticeably fewer records than the core powder and additive-manufacturing classes: in-process imaging for beam control, hybrid AM-plus-machining component claims, sheet-metal hybrid processes, and medical-device-specific EBM applications each register in single digits to low double digits against 52 in the leading class. That relative thinness does not guarantee an easy filing, but it does mark where claim density is lower and a well-drafted first filing has more room to stand out.