ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,867, issued on Jan. 27, was assigned to AWI Licensing LLC (Wilmington, Del.).
"Sound attenuating building panels" was invented by Phi-Oanh R. Pham (Lancaster, Pa.), William H. Frantz (Elizabethtown, Pa.) and Sean D. Browne (Lancaster, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustical ceiling panel including a first layer having a first major surface opposite a second major surface and a side surface extending therebetween, a second layer having a first major surface opposite a second major surface and a side surface extending therebetween, and a sealing layer having a first major surface opposite a second major surface and a side surf...