ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,080, issued on Nov. 18, was assigned to EffectiV Inc. (Blainville, Canada).

"Ventilation regulation system, air regulation apparatus for use therewith and drum segment forming part of the regulation apparatus" was invented by Francois Godbout (Sainte-Anne-des-Lacs, Canada) and Vishalkumar Patel (Etobicoke, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "The ventilation regulation system comprises a ventilation duct including a ventilation opening through a separating wall of the ventilation duct. An air regulation apparatus is provided within the ventilation opening for regulating the air flow therethrough, and comprises a modular air regulati...