Helmut K. Amthor

EC Eveready Battery Company: 2 patents #192 of 520Top 40%

📍 Rocky River, OH: #108 of 263 inventorsTop 45%

🗺 Ohio: #30,338 of 73,341 inventorsTop 45%

Overall (All Time): #2,326,249 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4959280	Battery assembly	—	1990-09-25
4731712	Squeezable flashlight	—	1988-03-15