Samsung Display leads the ranked assignees with 827 records in this dataset, well ahead of the fifth-placed assignee at 267. The top five assignees together account for 2,132 records, which is 19.2% of the 11,077 records in scope — a real concentration at the top but far from a monopoly, since more than 80% of records sit outside the leading five names. The full ranking runs to 100 companies, so there is a substantial long tail beyond the visible leaders.

Filings peaked in 2018 at 544 published records and have eased since; the last two fully comparable years show a move from 490 filings in 2021 to 325 in 2024, a documented -34% change. However, publication typically lags actual filing by around 18 months, so the lower counts shown for 2025 and 2026 in most datasets reflect incomplete data rather than a real collapse in activity. Treat any 2025-2026 figures as a floor, not a final count.

B32B, the IPC subclass covering layered products and laminates, appears on 30.4% of the 11,077 records in scope, the largest single share. H01L (semiconductor devices) and B65D (containers & packaging) follow at 16.7% and 14.9% respectively, with the OLED-specific H10K class at 13.4%. Because a single record can carry several IPC classes, these percentages add up to more than 100% and should be read as claim-density signals per class rather than a strict breakdown of the whole field.