Photometry Device for Bloodstream Oxygen Measurement Using Dual LED Configuration

USPTO issued Patent No. US12588842B2 to Analog Devices International Unlimited Company on March 31, 2026. The patent covers a photometry device with a first LED and second LED that emit light to a target in response to respective currents, with an inductor coupled to both LEDs to store energy. The CPC classifications indicate applications in patient monitoring (A61B 5/1455) and optical measurement (G01J 1/08).

Patent holders should review the granted claims to understand the scope of protection for their oxygen measurement technology. The patent filing date was May 3, 2024, under Application No. 18654910. Manufacturers developing similar photometry-based oxygen measurement devices may need to design around these claims or seek licensing. No immediate compliance actions are required for entities merely using or purchasing such devices.