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John Claude Springstead

RA Rayovac: 2 patents #49 of 170Top 30%
Overall (All Time): #2,212,541 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6372381 Duplex-coated cathode cans, and electrochemical cells made therewith SangKeun Park, David Matthew Armour 2002-04-16
5919586 Toed-in anode can and electrochemical cell made therewith John Edward Oltman 1999-07-06