ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,633, issued on June 2, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Oral irrigator" was invented by Ethan Albright (Mill Creek, Wash.) and Maarten Johannes Bernardus Brugmans (Kirkland, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An oral irrigator delivers a flow rate as a series of pulses, each pulse having an amplitude which increases progressively over at least the majority of the time duration of the pulse. Each pulse is intended for the cleaning of a single interdental space."
The patent was filed on Nov. 13, 2020, under Application No. 17/775,633.
*For further information, including images, charts and tables, p...