JS

James R. Helmer, Sr.

📍 Kingsford, MI: #4 of 22 inventorsTop 20%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,215,779 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D459665 Magnetic-backed timer with indicator — 2002-07-02
4807449 Latent heat economizing device for refrigeration systems — 1989-02-28