ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,485, issued on June 2, was assigned to ZOLL Medical Corp. (Chelmsford, Mass.).

"Method and apparatus for non-invasive detection of physiological and patho-physiological sleep conditions" was invented by Robert P. Schnall (Kiryat Bialik, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Method and apparatus for the non-invasive detection of certain breathing conditions, certain sleep disordered breathing conditions, or assessment of the person's myocardial contractility and its dynamic changes, comprising steps of: determining the sleep or wake status of a person, monitoring circulatory pulse waveforms and amplitude normalized pulse wave systolic ...