JO

John Edward Oltman

RA Rayovac: 3 patents #7 of 39Top 20%
📍 Verona, WI: #2 of 19 inventorsTop 15%
🗺 Wisconsin: #41 of 2,194 inventorsTop 2%
Overall (1997): #7,523 of 185,788Top 5%
4
Patents 1997

Issued Patents 1997

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5656395 Metal-air cathode and cell having a hardened current collecting substrate Robert B. Dopp, Joseph L. Passaniti 1997-08-12
5650246 Metal-air cathode and cell having a hardened current collecting substrate Robert B. Dopp, Joseph L. Passaniti 1997-07-22
5637117 Method of hardening a metal current collecting strip of an air cathode and a method of making a button type battery Robert B. Dopp, Joseph L. Passaniti 1997-06-10
5591541 High steel content thin walled anode can 1997-01-07