JH

James T. Hartman

EN Envirotech: 1 patents #39 of 100Top 40%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,089,458 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4267502 Precipitator voltage control system Robert O. Reese, Karl Wieber 1981-05-12