ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,766, issued on Nov. 4.

"Inhaler" was invented by Markus Mezger (Freiberg am Neckar, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inhaler for administering powdery dry substances comprises two substance carrying disks (2, 3). Each disk has a cavity filled with a powdery dry substance. The substance carrying disks (2, 3) are rotatably arranged about a common axis of rotation such that the cavities are opposite each other. The inhaler further has an airway (4) having a piercing nozzle (41). The piercing nozzle is disposed between the substance carrying disks (2, 3)."

The patent was filed on Dec. 18, 2019, under Application No. 17/785,986....