In this corpus, the claims typically describe an abrasive particle or grain with a precisely controlled geometry — a defined pyramid structure, a specific grain aspect ratio, or a tapered protrusion shape — rather than the irregular, randomly fractured grain used in conventional abrasives. The functional payoff claimed is usually consistent scratch depth, predictable wear, or a self-sharpening edge as the particle wears down. Because the shape is engineered rather than incidental, these claims often sit alongside a manufacturing-process claim describing how the shape is produced, such as microreplication.

One assignee holds a clear majority of the 70 records in this dataset’s ranked assignee list of 16 companies, with 62 records against a fifth-place count of only 3. That concentration means most of the core shaped-particle geometry claims already sit with a single filer, and any competitive analysis should start by reading that filer’s claim scope closely before assuming open ground. The rest of the ranking is a thin tail of low-volume filers and named individual inventors.

Filing activity peaked in 2020 at 10 records and has not returned to that level since, based on the years tracked in this dataset. A meaningful growth rate is not computable here because fewer than four complete years remain once the roughly 18-month publication lag is accounted for, so recent-year counts should be read as a floor rather than a true current rate. The honest read is that the field looks flat-to-declining on the visible data, with the caveat that the last one to two years are still filling in.