ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,315, issued on Nov. 3.

"Car seat rocker" was invented by John Bernard Foreman (Mill Creek, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A car seat rocker for attachment to a car seat comprises an inertial mass, an articulating bearing, a processor, a sensor, and a servo actuator for rotating the inertial mass about the bearing and relative to the car seat in response to the processor. The processor may filter data from the motion sensor and use the filtered data for determining angular velocity and phase alignment of the car seat. The processor may use artificial intelligence to analyze the angular velocity and phase alignment and to calculat...