US Patent Issued to LHOIST RECHERCHE ET DEVELOPPEMENT on March 3 for "Filter material for water treatment" (German Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,826, issued on March 3, was assigned to LHOIST RECHERCHE ET DEVELOPPEMENT S.A. (Ottignies-Louvain-la-Neuve, Belgium).

"Filter material for water treatment" was invented by Heidrun Vedder (Blankenheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first filter material for water treatment comprising a first granulate containing calcium carbonate and a second granulate containing magnesium oxide, wherein the first and the second granulate each independently having a bulk density of 1.00 to 1.40 t/m3; a second filter material for water treatment comprising 55 to 85 wt. % of a first granulate containing calcium carbonate and 15 to 45 wt. % of...