JE

John E. Ehrrich

ER Ercon: 1 patents #2 of 4Top 50%
📍 Wayland, MA: #393 of 613 inventorsTop 65%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,093,889 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4280658 Liquid filter and mass transfer means — 1981-07-28