This dataset identifies 24 patent families published between 2015 and mid-2026 that combine wearable biosensor or sweat-sensor claims with operational constraints such as skin interface, motion artifact, calibration-free operation, power budget or long-term wear. That is a narrow, functionally-defined slice of the broader wearable-sensor patent space, not a count of every wearable health-monitoring patent filed. Because publication lags filing by roughly 18 months, the 2025-2026 figures will rise as more filings publish.

Aquilx Incorporated holds the most-cited family in this dataset, a microneedle-based wearable biosensor focused on wear life and insertion process. No single assignee shows sustained year-on-year filing growth into the most recent year, and the assignee base includes universities and individual inventors alongside corporate filers. Saveetha Engineering College is the only tracked assignee with a filing in the latest year covered.

Every family in this dataset carries an A61B (diagnosis and surgery) classification, meaning sensor mechanics — how the device sits on skin, detects a signal and stays attached — are the most densely claimed area. Material analysis (G01N) and healthcare informatics (G16H) appear far less often, suggesting the data-processing and analytics layer around the sensor is comparatively open. High filing density in A61B means that claim space is occupied, not that the underlying problems are solved.

Based on IPC composition, calibration-free drift correction, motion-artifact filtering, low-power wireless duty-cycling and AI-based signal interpretation are all represented by only one or two families each, against 24 for the core sensor-device classification. These are areas where the practical engineering problem is well documented in the literature but claim coverage in this dataset is thin. A first claim in these areas would likely need to tie a specific correction or duty-cycling method to a measurable wear-time or power outcome to stand apart from the device-layer prior art.

US20240285236A1, assigned to Aquilx Incorporated, is the most-cited family in this dataset and claims a microneedle-based wearable biosensor with extended wear life, reduced warm-up time, a skin-locking insertion mechanism and improved microneedle durability. Anyone designing a similar microneedle-based continuous-monitoring device should review its specific claim language on insertion mechanics and warm-up elimination before finalising a design. Because citation counts in a searched corpus favour older, more-established filings, its high citation count reflects influence within this set rather than a guarantee of current enforcement activity.