ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,469, issued on May 20, was assigned to Johns Manville (Denver).

"Mat made of glass fibers or polyolefin fibers used as a separator in a lead-acid battery" was invented by Souvik Nandi (Highlands Ranch, Colo.), Zhuhua Guo (Ottawa Hills, Ohio), Jawed Asrar (Englewood, Colo.) and Albert G Dietz III (Davidson, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the invention provide methods and apparatuses for enhancing electron flow within a battery, such as a lead-acid battery. In one embodiment, a battery separator may include a conductive surface or layer upon which electrons may flow. The battery separator may include a fiber mat tha...