P. R. Mallory and Co Inc

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P. R. Mallory and Co Inc was a US producer of dry cell batteries (Mercury; alkaline Duracell), electronic components including electrolytic capacitors, and audible warning devices ("Sonalert"). It also was the parent firm of Mallory Batteries Ltd., an Irish producer of Ever Ready batteries. British Ever Ready^{[notes 1]} had a large stake in it by World War II and had a close relationship with Mallory by the late 1960s (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.
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