US Patent Issued to KNAUF GIPS on May 20 for "Open-celled gypsum core, gypsum acoustic panel, and method for making same" (Illinois Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,871, issued on May 20, was assigned to KNAUF GIPS KG (Iphofen, Germany).

"Open-celled gypsum core, gypsum acoustic panel, and method for making same" was invented by Yijun Sang (Oak Park, Ill.), Suman Sinha Ray (Chicago) and Mark Hemphill (Hawthorn Woods, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An open cell set gypsum core includes an interlocking matrix of gypsum having air voids distributed therein. The air voids define cells having cell walls formed by the interlocking matrix. The interlocking matrix further includes channels distributed therein. The channels interconnect the air voids and comprise openings in the cell walls."

The pa...