This week’s filing is the most recent court visit by the company but not its first. In 2016, A.L.S. Enterprises, Inc., the makers of ScentLok, sued Robinson Outdoor Products for a series of ads launched in 2013 in which Robinson began advertising its Trinity Technology this way: “Trinity adsorbs odor up to 40% more than carbon” and “up to 200% more than Zeolite.”

In May 2016, a jury found Robinson Outdoor Products liable for willfully presenting false advertisements regarding its Trinity Technology’s effectiveness and awarded A.L.S. a settlement of $3.8 million. That settlement was later vacated in a U.S. District Court.