ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,150, issued on June 16, was assigned to OilKontrol USA Inc (Doral, Fla.).
"Method for obtaining a modified collagen absorbent product from leather" was invented by Francisco Fernando Iturriaga Zagal (Alicante, Spain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for obtaining a modified collagen absorbent product from leather, which comprises aerating flat pieces of leather during a time period of between 15 and 45 days; collecting the pieces with an initial relative humidity value of 45% or less; grading the pieces by size; obtaining pieces with a maximum final length of between 0.5 and 1.5 mm; placing the pieces i...