ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,067, issued on June 9, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Oral care device and method" was invented by Mark Thomas Johnson (Arendonk, Belgium), Lutz Christian Gerhardt (Eindhoven, Netherlands) and Bart Gottenbos (Budel, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "An oral care device has a field generator adapted to generate an electric field in a mouth of a user, responsive to an input control signal. The electric field is for imparting a force upon particles forming a biofilm to be removed by the oral care device or upon cleaning agent particles. A cyclic control signal is generated for intermittent ge...