US Patent Issued on March 31 for "Filling material" (Austrian Inventor)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,029, issued on March 31.

"Filling material" was invented by Egon Doberl (Grunbach bei Freistadt, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dry mix of a thermally insulating fill material for backfilling and/or filling. The fill material includes a cement-based binder and a thermally insulating material, and the thermally insulating material is newly foamed monograin polystyrene beads."

The patent was filed on Feb. 9, 2022, under Application No. 18/276,479.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bo...