The marketing name is "cuffless blood pressure"; the filing name is radio-wave monitoring with a trained model. Movano's granted patent US11844596B2, issued December 19, 2023, and its companion US11596321B2, "Methods for training a model for use in radio wave based blood pressure monitoring," issued March 7, 2023, describe sensing blood pressure with radio waves and a machine-learning model. The CPC pairing of vascular-measurement classes (A61B 5/021, A61B 5/0507) with G06N 20/00 is the signature.
On the record, blood pressure is the wearable industry's hardest unsolved problem. Heart rate is easy optically; SpO2 is achievable; continuous, cuffless, accurate blood pressure has resisted everyone, because the gold standard is an inflating cuff and any non-contact proxy has to be calibrated and validated against it. A radio-wave method is one of the more exotic attempts — sensing the mechanical pulse wave through RF rather than light.
Why the machine-learning class is in the claim: radio-wave signals from the body are noisy and indirect, so the approach leans on a trained model to map RF features to a pressure estimate. That is why a companion patent specifically covers generating training data and training the model — the model is not incidental, it is the product.
Novel, or just renamed? This is genuinely novel territory relative to optical wearable sensing, which is why a smaller specialist like Movano rather than a phone giant holds the family. The wearable-health frontier is moving toward exactly these harder vital signs, and the IP is being staked by focused players first.
Scope, stated carefully: these are granted patents to Movano on specific radio-wave methods. A grant is not regulatory clearance — cuffless blood pressure faces a high validation bar before it can claim clinical accuracy, and a patent says nothing about whether the device meets it.
Follow the filing, not the press release. When a wearable maker eventually claims cuffless blood pressure, watch whether it builds on, licenses, or designs around radio-wave families like this 2023 one. The frontier is on the docket before it is on the wrist.