ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,489, issued on Feb. 24, was assigned to SANOFI (Paris).

"Injection device" was invented by Maurice Toporek (Frankfurt am Main, Germany), Markus Ploch (Frankfurt am Main, Germany) and Stefan Blancke (Frankfurt am Main, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An injection device comprises a housing with a receptacle for the product, a dosing mechanism for setting a product dosage, a dispensing mechanism for dispensing the product, at least one sleeve, which is rotatable relative to the housing in order to eject the set product dosage, and a stop wheel coupled to the at least one sleeve such that the stop wheel is rotatable relative to t...