The ranked list covers 88 companies across 528 records in scope, and it is concentrated at the top: the five largest filers together hold 44.1% of all records, and the ten largest hold 56.4%. The single leading assignee holds 116 records on its own, well ahead of the fifth-placed filer at 17. Below the top ten, filing counts drop quickly into a long tail of companies with only a handful of records each, so the field is dominated by a small group rather than evenly spread.

Filing peaked at 83 records in 2019 and has since settled into a lower, largely flat band, with 61 records in 2021 against 60 in 2024 — a -2% change over that span. That is stabilization rather than either strong growth or a real decline. The 2025 and 2026 figures in the underlying data are still incomplete because publication typically lags actual filing by around 18 months, so the most recent two years will revise upward as more records publish.

Based on IPC classification across the 528 records, additive manufacturing process claims (B33Y) appear on 58.0% of records and plastics shaping claims (B29C) on 37.3%, making these the two dominant classes. Smaller but consistent shares fall under addition and condensation polymer chemistry (C08F, C08G), dentistry and oral hygiene applications (A61C, at 14.4%), powder metallurgy (B22F), and grinding/polishing (B24B). Because a single record can carry multiple IPC classes, these shares overlap and add up to more than 100%.