ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,661, issued on June 10, was assigned to CORNING Inc. (Corning, N.Y.).
"Lead free glass composition for microchannel plate fabrication" was invented by Yves Andre Henri Brocheton (Samoreau, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are lead free glass compositions having, in some embodiments, SiO2 from 25 wt % to 60 wt %, Al2O3 from 0 wt % to 20 wt %, B2O3 from 0 wt % to 35 wt %, ZrO2 from 0 wt % to 5 wt %, Li2O from 5 wt % to 17 wt %, Na2O from 3 wt % to 10 wt %, K2O from 1 wt % to 10 wt %, RO from 0 wt % to 20 wt %, wherein RO is an alkaline earth oxide, ZnO from 0 wt % to 15 wt %, and 0 wt % lead."
The patent was file...