sentences:  In the US, "Eveready" batteries were a trademark of Union Carbide, which had no relationship with P. R. Mallory.Scientists George Wallis and Daniel I. Pomerantz at P. R. Mallory and Co discovered anodic bonding of glass to silicon.Their work was published in 1969 in the Journal of Applied Physics and is protected under U.S. Patent No 3,397,278.