EJ

Edwin L. Johnson

📍 Ballwin, MO: #21 of 66 inventorsTop 35%
🗺 Missouri: #597 of 2,351 inventorsTop 30%
Overall (2018): #429,940 of 503,207Top 90%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9964230 Retarder control valve assembly and system for rail cars — 2018-05-08