In this dataset, it is a filing that claims a system with two or more actuators driving the same load path, plus some mechanism for coordinating them — position feedback, force sensing, or a control loop that reconciles differences between channels. The search combined this concept with force-fight mitigation terms like force equalization, load sharing and cross channel monitoring, which is why the results cluster heavily around aircraft flight-control surfaces rather than generic multi-actuator machinery. Not every dual-actuator patent qualifies; the mitigation element is what puts a record in scope here.

The ranking covers 27 companies with a steep concentration at the top: the leading assignee holds 26 of the 111 records in scope, and the top five together account for 71.2% of all records. By the tenth-ranked company, holdings have dropped to just 3 records, and the remaining companies in the ranking each hold a handful or fewer. This is a field with a small number of entrenched aerospace and actuation-system suppliers rather than many equally-sized competitors.

Filings peaked at 13 in 2021 and the visible count falls to 0 by 2024, a -100% change over that span. Part of this is a genuine cooling, but part of it is a publication-lag artefact: patent applications typically take around 18 months to publish, so 2025 and 2026 figures in any dataset are always undercounted at the time of analysis. Treat 2024 as the last year that can be read with confidence, and expect the two most recent years to revise upward as more records publish.