Laser induced forward transfer describes a family of techniques for moving discrete components, most often micro-LEDs or other semiconductor die, from a donor substrate to a target substrate using laser ablation of a dynamic release layer rather than mechanical contact. In the patent record, the dominant application is micro-display and semiconductor assembly, though the technique originated in ablation-transfer imaging and recording, which is still reflected in the most-cited older filings. Most recent filings claim either the transfer mechanism itself or the layer stack (support, release, adhesive) that makes selective transfer possible.

The ranked field covers 68 assignees, with the leader holding 30 of the 212 records in scope and the top 5 combined holding 99 records, or 46.7% of the field. That concentration falls off sharply after the top few positions: fifth place holds 11 records and tenth place holds 9, meaning most of the remaining 58 assignees hold only a handful of records each. Any competitive clearance exercise should prioritise the leader’s portfolio first given the size of that gap.

Filing peaked in 2019 at 47 published records and has since eased, with the 2021-2024 window showing a 23% decline from 22 to 17 records. However, publication typically lags actual filing by around 18 months, so the most recent one to two years in any such trend will always look lower than the true filing rate turns out to be. The honest reading is that the field has cooled from its 2019 high, not that it has gone quiet.