ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,447, issued on Feb. 24, was assigned to AESCULAP AG (Germany).
"Smart oil spray adapter" was invented by Roland-Alois Hogerle (Tuttlingen, Germany) and Uwe Schaz (Neuhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an adapter for connection to a spray can dispensing an oil-containing aerosol. The adapter comprises a timepiece configured to measure a predetermined time interval, the starting point of the time measurement being defined by the start of a spraying process of the spray can; and an indicating element configured to indicate to the user, once the predetermined time interval has expired, to end the spraying process....