Petitioner:  Patent Covers ‘Extremely Well-Known’ Flight Control Concept

(August 1, 2023, 11:13 AM EDT) -- ALEXANDRIA, Va. — A patent issued in 2014 that purportedly covers a system for controlling rotation about the vertical axis, or “yaw,” while an aircraft maintains a constant velocity flight path relative to the surface of the ground is obvious, a petitioner tells the Patent Trial and Appeal Board in a petition for inter partes review (IPR)....

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