US Patent Issued to University of Cincinnati on Feb. 17 for "Portable oral positive expiratory pressure-generating devices with variable expiratory airflow resistances" (Ohio Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,754, issued on Feb. 17, was assigned to University of Cincinnati (Cincinnati).

"Portable oral positive expiratory pressure-generating devices with variable expiratory airflow resistances" was invented by Muhammad Ahsan Zafar (West Chester, Ohio) and Ralph J. Panos (Wyoming, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive expiratory pressure-generating device for reducing breathlessness in a subject with one or more pulmonary disorders is disclosed. The device is rigid and hollow and can be held in the mouth of the subject. The device has at least one air chamber, at least one opening in the portion of the device that is held in the mo...